Standard Lemma guide

nuclear

adj · noun · 14 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Canada: n(y)o͞okliər
  • Canada: /ˈn(j)u.kli.ɚ/
  • Canada: Recorded audio is listed in the source snapshot.
  • Received-Pronunciation: nyo͞oklî r
  • Received-Pronunciation: /ˈnjuː.klɪə(ɹ)/
  • UK: Recorded audio is listed in the source snapshot.
  • US: n(y)o͞okliər
  • US: n(y)o͞okyələr
  • US: /ˈn(j)u.kli.ɚ/
  • proscribed: /ˈn(j)u.kjə.lɚ/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -uːkliə(ɹ)
  • rhymes with -uːklɪə(ɹ)
  • rhymes with -uːkjələ(ɹ)
  • CMU ARPABET: N UW1 K L IY0 ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Pertaining to the nucleus of an atom.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Involving energy released by nuclear reactions (fission, fusion, radioactive decay).

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • a nuclear reactor
  • nuclear technology

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Relating to a weapon that derives its force from rapid release of energy through nuclear reactions.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • a nuclear explosion
  • a nuclear power

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adj

Meaning 4

Having nuclear weapons.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adj

Meaning 5

Involving an extreme course of action, or one with severe consequences.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, figuratively, not-comparable

Examples

  • nuclear option, nuclear solution

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adj

Meaning 6

Pertaining to the nucleus of a cell.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adj

Meaning 7

Pertaining to a centre around which something is developed or organised; central, pivotal.

Definition source: English Wiktionary via Wiktextract

Usage: archaic, not-comparable

Examples

  • Nuclear Polynesian languages include Hawaiian and Samoan.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

adj

Meaning 8

Relating to, being of, or comprising the nuclear family.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

noun

Meaning 9

Nuclear power.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

noun

Meaning 10

Nuclear weapon

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

adjective

Meaning 11

(weapons) deriving destructive energy from the release of atomic energy

Definition source: Princeton WordNet 3.0

Examples

  • nuclear war
  • nuclear weapons
  • atomic bombs

Meaning relationships

Synonyms: atomic

Antonyms: conventional

12

adjective

Meaning 12

of or relating to or constituting the nucleus of an atom

Definition source: Princeton WordNet 3.0

Examples

  • nuclear physics
  • nuclear fission
  • nuclear forces

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

adjective

Meaning 13

of or relating to or constituting the nucleus of a cell

Definition source: Princeton WordNet 3.0

Examples

  • nuclear membrane
  • nuclear division

Meaning relationships

Synonyms: none provided

Antonyms: none provided

14

adjective satellite

Meaning 14

constituting or like a nucleus

Definition source: Princeton WordNet 3.0

Examples

  • annexation of the suburban fringe by the nuclear metropolis
  • the nuclear core of the congregation

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From Latin nū̆cleus, a contraction of the adjective nuculeus, masculine of feminine nuculea (“pertaining to a small nut”) from nucula + adjectival suffix -eus, -ea, -eum. The Latin nucula + -āris adds up to nuculāris, a term that in English becomes nucular; the Latin nuculea + -āris, becomes Latin nuculeāris (“relative to what pertains to small nut”), later contracted into nuclear. By surface analysis, nucleus + -ar. Compare muscle and Latin mūsculus; muscular and mūsculāris.

Across languages

Translations

241 source translations are retained for this English entry.

  • Albanian: bërthamor — pertaining to the nucleus of a cell
  • Arabic: نَوَوِيّ (nawawiyy) — pertaining to the nucleus of a cell
  • Armenian: միջուկային (miǰukayin) — pertaining to the nucleus of a cell
  • Belarusian: я́дзерны (jádzjerny) — pertaining to the nucleus of a cell
  • Bulgarian: я́дрен (jádren) — pertaining to the nucleus of a cell
  • Chinese Mandarin: 核 (hé) — pertaining to the nucleus of a cell
  • Cornish: nuklerek — pertaining to the nucleus of a cell
  • Danish: kerne- — pertaining to the nucleus of a cell
  • Dutch: kern- — pertaining to the nucleus of a cell
  • Estonian: tuuma- — pertaining to the nucleus of a cell
  • Finnish: tuma- — pertaining to the nucleus of a cell
  • French: nucléaire — pertaining to the nucleus of a cell
  • Galician: nuclear — pertaining to the nucleus of a cell
  • Georgian: ბირთვული (birtvuli) — pertaining to the nucleus of a cell
  • German: nuklear — pertaining to the nucleus of a cell
  • German: Kern- — pertaining to the nucleus of a cell
  • Greek: πυρηνικός (pyrinikós) — pertaining to the nucleus of a cell
  • Hebrew: גַּרְעִינִי (gar'iní) — pertaining to the nucleus of a cell
  • Hindi: केंद्रक (kendrak) — pertaining to the nucleus of a cell
  • Hindi: केंद्रकीय (kendrakīya) — pertaining to the nucleus of a cell
  • Hindi: नाभिकीय (nābhikīya) — pertaining to the nucleus of a cell
  • Icelandic: frumeinda- — pertaining to the nucleus of a cell
  • Icelandic: kjarna- — pertaining to the nucleus of a cell
  • Icelandic: atóm- — pertaining to the nucleus of a cell
  • Ido: nukleala — pertaining to the nucleus of a cell
  • Interlingua: nuclear — pertaining to the nucleus of a cell
  • Irish: eithneach — pertaining to the nucleus of a cell
  • Irish: núicléach — pertaining to the nucleus of a cell
  • Italian: nucleare — pertaining to the nucleus of a cell
  • Japanese: 核 (kaku) — pertaining to the nucleus of a cell
  • Kazakh: ядролық (ädrolyq) — pertaining to the nucleus of a cell
  • Korean: 핵 (haek) — pertaining to the nucleus of a cell
  • Central Kurdish: ناوکی (nawikî) — pertaining to the nucleus of a cell
  • Latvian: kodol- — pertaining to the nucleus of a cell
  • Lithuanian: branduolinis — pertaining to the nucleus of a cell
  • Macedonian: ја́дрен (jádren) — pertaining to the nucleus of a cell
  • Macedonian: нуклеа́рен (nukleáren) — pertaining to the nucleus of a cell
  • Mongolian: цөмийн (cömiin) — pertaining to the nucleus of a cell
  • Norman: nucléaithe — pertaining to the nucleus of a cell
  • Norwegian Bokmål: kjerne- — pertaining to the nucleus of a cell
  • Iranian Persian: هَسْتِهای (haste-i) — pertaining to the nucleus of a cell
  • Polish: jądrowy — pertaining to the nucleus of a cell
  • Portuguese: nuclear — pertaining to the nucleus of a cell
  • Romanian: nuclear — pertaining to the nucleus of a cell
  • Russian: я́дерный (jádernyj) — pertaining to the nucleus of a cell
  • Scottish Gaelic: niùclasach — pertaining to the nucleus of a cell
  • Serbo-Croatian: ну̏клеа̄рнӣ — pertaining to the nucleus of a cell
  • Serbo-Croatian: nȕkleārnī — pertaining to the nucleus of a cell
  • Slovak: jadrový — pertaining to the nucleus of a cell
  • Slovak: nukleárny — pertaining to the nucleus of a cell
  • Slovene: jedrski — pertaining to the nucleus of a cell
  • Spanish: nuclear — pertaining to the nucleus of a cell
  • Swedish: nukleär — pertaining to the nucleus of a cell
  • Swedish: kärn- — pertaining to the nucleus of a cell
  • Tajik: ядроӣ (yadroyi) — pertaining to the nucleus of a cell
  • Tajik: ҳастаӣ (hastayi) — pertaining to the nucleus of a cell
  • Thai: นิวเคลียส (niu-klíias) — pertaining to the nucleus of a cell
  • Thai: นิวเคลียร์ (niu-kliia) — pertaining to the nucleus of a cell
  • Turkish: nükleer — pertaining to the nucleus of a cell
  • Ukrainian: я́дерний (jádernyj) — pertaining to the nucleus of a cell
  • Vietnamese: hạt — pertaining to the nucleus of a cell
  • Vietnamese: hạt nhân — pertaining to the nucleus of a cell
  • Bulgarian: центра́лен (centrálen) — pertaining to a centre; central, pivotal
  • Finnish: keskeinen — pertaining to a centre; central, pivotal
  • Hindi: केंद्रीय (kendrīya) — pertaining to a centre; central, pivotal
  • Macedonian: сре́диштен (srédišten) — pertaining to a centre; central, pivotal
  • Macedonian: це́нтрален (céntralen) — pertaining to a centre; central, pivotal
  • Russian: центра́льный (centrálʹnyj) — pertaining to a centre; central, pivotal
  • Spanish: nucleario — pertaining to a centre; central, pivotal
  • Armenian: միջուկային (miǰukayin) — pertaining to the atomic nucleus
  • Belarusian: я́дзерны (jádzjerny) — pertaining to the atomic nucleus
  • Bulgarian: я́дрен (jádren) — pertaining to the atomic nucleus
  • Cornish: nuklerek — pertaining to the atomic nucleus
  • Finnish: ydin- — pertaining to the atomic nucleus
  • Finnish: ytimeen liittyvä — pertaining to the atomic nucleus
  • Hindi: नाभिकीय (nābhikīya) — pertaining to the atomic nucleus
  • Irish: núicléach — pertaining to the atomic nucleus
  • Kazakh: ядролық (ädrolyq) — pertaining to the atomic nucleus
  • Macedonian: ја́дрен (jádren) — pertaining to the atomic nucleus
  • Macedonian: нуклеа́рен (nukleáren) — pertaining to the atomic nucleus
  • Malayalam: ആണവ (āṇava) — pertaining to the atomic nucleus
  • Norwegian Bokmål: kjernefysisk — pertaining to the atomic nucleus
  • Norwegian Bokmål: atom- — pertaining to the atomic nucleus
  • Norwegian Bokmål: kjerne- — pertaining to the atomic nucleus
  • Norwegian Nynorsk: kjernefysisk — pertaining to the atomic nucleus
  • Polish: nuklearny — pertaining to the atomic nucleus
  • Russian: я́дерный (jádernyj) — pertaining to the atomic nucleus
  • Albanian: bërthamor — involving nuclear energy
  • Arabic: نَوَوِيّ (nawawiyy) — involving nuclear energy
  • Armenian: միջուկային (miǰukayin) — involving nuclear energy
  • Azerbaijani: nüvə — involving nuclear energy
  • Belarusian: я́дзерны (jádzjerny) — involving nuclear energy
  • Breton: nukleel — involving nuclear energy
  • Bulgarian: я́дрен (jádren) — involving nuclear energy
  • Burmese: နျူကလိယ (nyuka.li.ya.) — involving nuclear energy
  • Catalan: nuclear — involving nuclear energy
  • Chinese Mandarin: 核 (hé) — involving nuclear energy
  • Cornish: nuklerek — involving nuclear energy
  • Czech: jaderný — involving nuclear energy
  • Danish: kerne- — involving nuclear energy
  • Dutch: kern- — involving nuclear energy
  • Esperanto: nuklea — involving nuclear energy
  • Finnish: ydin- — involving nuclear energy
  • Finnish: ydinvoima- — involving nuclear energy
  • French: nucléaire — involving nuclear energy
  • Galician: nuclear — involving nuclear energy
  • Georgian: ბირთვული (birtvuli) — involving nuclear energy
  • German: nuklear — involving nuclear energy
  • German: Kern- — involving nuclear energy
  • Greek: πυρηνικός (pyrinikós) — involving nuclear energy
  • Hebrew: גַּרְעִינִי (gar'iní) — involving nuclear energy
  • Hindi: नाभिकीय (nābhikīya) — involving nuclear energy
  • Hungarian: nukleáris — involving nuclear energy
  • Icelandic: kjarna- — involving nuclear energy
  • Icelandic: atóm- — involving nuclear energy
  • Icelandic: kjarnorku- — involving nuclear energy
  • Indonesian: nuklir — involving nuclear energy
  • Interlingua: nuclear — involving nuclear energy
  • Irish: núicléach — involving nuclear energy
  • Italian: nucleare — involving nuclear energy
  • Japanese: 核 (kaku) — involving nuclear energy
  • Kazakh: ядролық (ädrolyq) — involving nuclear energy
  • Khmer: នុយក្លេអ៊ែរ (nuykleeʼɛɛ) — involving nuclear energy
  • Khmer: បរមាណូ (paʼraʼmaanou) — involving nuclear energy
  • Korean: 핵 (haek) — involving nuclear energy
  • Kyrgyz: ядролук (yadroluk) — involving nuclear energy
  • Lao: ປະລະມານູ (pa la mā nū) — involving nuclear energy
  • Lao: ນີວຄະເລັຽ (nīu kha līa) — involving nuclear energy
  • Macedonian: ја́дрен (jádren) — involving nuclear energy
  • Macedonian: нуклеа́рен (nukleáren) — involving nuclear energy
  • Malay: nuklear — involving nuclear energy
  • Malayalam: ആണവ (āṇava) — involving nuclear energy
  • Mongolian: цөмийн (cömiin) — involving nuclear energy
  • Norman: nucléaithe — involving nuclear energy
  • Norwegian Bokmål: kjernefysisk — involving nuclear energy
  • Norwegian Bokmål: kjerne- — involving nuclear energy
  • Norwegian Bokmål: atom- — involving nuclear energy
  • Norwegian Nynorsk: kjernefysisk — involving nuclear energy
  • Occitan: nuclear — involving nuclear energy
  • Iranian Persian: هَسْتِهای (haste-i) — involving nuclear energy
  • Polish: jądrowy — involving nuclear energy
  • Polish: nuklearny — involving nuclear energy
  • Portuguese: nuclear — involving nuclear energy
  • Romanian: nuclear — involving nuclear energy
  • Romanian: atomic — involving nuclear energy
  • Russian: я́дерный (jádernyj) — involving nuclear energy
  • Scottish Gaelic: niùclasach — involving nuclear energy
  • Serbo-Croatian: ну̏клеа̄ран — involving nuclear energy
  • Serbo-Croatian: nȕkleāran — involving nuclear energy
  • Slovak: jadrový — involving nuclear energy
  • Slovene: jedrski — involving nuclear energy
  • Spanish: nuclear — involving nuclear energy
  • Swedish: kärn- — involving nuclear energy
  • Swedish: kärnkraft- — involving nuclear energy
  • Swedish: kärnenergi- — involving nuclear energy
  • Tagalog: buturanin — involving nuclear energy
  • Tajik: ядроӣ (yadroyi) — involving nuclear energy
  • Tajik: ҳастаӣ (hastayi) — involving nuclear energy
  • Thai: ปรมาณู (bpà-rá-maa-nuu) — involving nuclear energy
  • Thai: นิวเคลียร์ (niu-kliia) — involving nuclear energy
  • Turkish: nükleer — involving nuclear energy
  • Turkmen: ýadro — involving nuclear energy
  • Ukrainian: я́дерний (jádernyj) — involving nuclear energy
  • Urdu: جَوہَری (jauharī) — involving nuclear energy
  • Uyghur: يادرو (yadro) — involving nuclear energy
  • Uzbek: yadro — involving nuclear energy
  • Uzbek: yadroga — involving nuclear energy
  • Vietnamese: hạt nhân — involving nuclear energy
  • Yiddish: נוקלעאַר (nuklear) — involving nuclear energy
  • Albanian: bërthamor — of a weapon: deriving its force from nuclear energy
  • Arabic: نَوَوِيّ (nawawiyy) — of a weapon: deriving its force from nuclear energy
  • Armenian: միջուկային (miǰukayin) — of a weapon: deriving its force from nuclear energy
  • Azerbaijani: nüvə — of a weapon: deriving its force from nuclear energy
  • Belarusian: я́дзерны (jádzjerny) — of a weapon: deriving its force from nuclear energy
  • Bulgarian: я́дрен (jádren) — of a weapon: deriving its force from nuclear energy
  • Burmese: နျူကလိယ (nyuka.li.ya.) — of a weapon: deriving its force from nuclear energy
  • Chinese Mandarin: 核 (hé) — of a weapon: deriving its force from nuclear energy
  • Cornish: nuklerek — of a weapon: deriving its force from nuclear energy
  • Czech: jaderný — of a weapon: deriving its force from nuclear energy
  • Czech: nukleární — of a weapon: deriving its force from nuclear energy
  • Danish: kerne- — of a weapon: deriving its force from nuclear energy
  • Dutch: nucleair — of a weapon: deriving its force from nuclear energy
  • Dutch: kern- — of a weapon: deriving its force from nuclear energy
  • Esperanto: nuklea — of a weapon: deriving its force from nuclear energy
  • Estonian: tuuma- — of a weapon: deriving its force from nuclear energy
  • Finnish: ydin- — of a weapon: deriving its force from nuclear energy
  • Finnish: ydinase- — of a weapon: deriving its force from nuclear energy
  • French: nucléaire — of a weapon: deriving its force from nuclear energy
  • Georgian: ბირთვული (birtvuli) — of a weapon: deriving its force from nuclear energy
  • German: nuklear — of a weapon: deriving its force from nuclear energy
  • German: Kern- — of a weapon: deriving its force from nuclear energy
  • Hebrew: גַּרְעִינִי (gar'iní) — of a weapon: deriving its force from nuclear energy
  • Hindi: नाभिकीय (nābhikīya) — of a weapon: deriving its force from nuclear energy
  • Hindi: कंद्रकीय (kandrakīya) — of a weapon: deriving its force from nuclear energy
  • Hungarian: nukleáris — of a weapon: deriving its force from nuclear energy
  • Icelandic: kjarnorku- — of a weapon: deriving its force from nuclear energy
  • Icelandic: atómsprengju- — of a weapon: deriving its force from nuclear energy
  • Interlingua: nuclear — of a weapon: deriving its force from nuclear energy
  • Italian: nucleare — of a weapon: deriving its force from nuclear energy
  • Japanese: 核 (kaku) — of a weapon: deriving its force from nuclear energy
  • Kazakh: ядролық (ädrolyq) — of a weapon: deriving its force from nuclear energy
  • Korean: 핵 (haek) — of a weapon: deriving its force from nuclear energy
  • Kyrgyz: ядролук (yadroluk) — of a weapon: deriving its force from nuclear energy
  • Lao: ນີວຄະເລັຽ (nīu kha līa) — of a weapon: deriving its force from nuclear energy
  • Latvian: kodol- — of a weapon: deriving its force from nuclear energy
  • Lithuanian: branduolinis — of a weapon: deriving its force from nuclear energy
  • Macedonian: ја́дрен (jádren) — of a weapon: deriving its force from nuclear energy
  • Macedonian: нуклеа́рен (nukleáren) — of a weapon: deriving its force from nuclear energy
  • Malayalam: ആണവ (āṇava) — of a weapon: deriving its force from nuclear energy
  • Norman: nucléaithe — of a weapon: deriving its force from nuclear energy
  • Norwegian Bokmål: kjernefysisk — of a weapon: deriving its force from nuclear energy
  • Norwegian Bokmål: atom- — of a weapon: deriving its force from nuclear energy
  • Norwegian Bokmål: kjerne- — of a weapon: deriving its force from nuclear energy
  • Norwegian Nynorsk: kjernefysisk — of a weapon: deriving its force from nuclear energy
  • Iranian Persian: هَسْتِهای (haste-i) — of a weapon: deriving its force from nuclear energy
  • Polish: jądrowy — of a weapon: deriving its force from nuclear energy
  • Polish: nuklearny — of a weapon: deriving its force from nuclear energy
  • Portuguese: nuclear — of a weapon: deriving its force from nuclear energy
  • Romanian: nuclear — of a weapon: deriving its force from nuclear energy
  • Romanian: atomic — of a weapon: deriving its force from nuclear energy
  • Russian: я́дерный (jádernyj) — of a weapon: deriving its force from nuclear energy
  • Scottish Gaelic: niùclasach — of a weapon: deriving its force from nuclear energy
  • Serbo-Croatian: ну̏клеа̄рнӣ — of a weapon: deriving its force from nuclear energy
  • Serbo-Croatian: nȕkleārnī — of a weapon: deriving its force from nuclear energy
  • Slovak: jadrový — of a weapon: deriving its force from nuclear energy
  • Slovak: nukleárny — of a weapon: deriving its force from nuclear energy
  • Slovene: jedrski — of a weapon: deriving its force from nuclear energy
  • Spanish: nuclear — of a weapon: deriving its force from nuclear energy
  • Swedish: nukleär — of a weapon: deriving its force from nuclear energy
  • Swedish: kärnvapen- — of a weapon: deriving its force from nuclear energy
  • Tagalog: buturanin — of a weapon: deriving its force from nuclear energy
  • Tajik: ядроӣ (yadroyi) — of a weapon: deriving its force from nuclear energy
  • Thai: นิวเคลียร์ (niu-kliia) — of a weapon: deriving its force from nuclear energy
  • Thai: ปรมาณู (bpà-rá-maa-nuu) — of a weapon: deriving its force from nuclear energy
  • Turkish: nükleer — of a weapon: deriving its force from nuclear energy
  • Turkmen: ýadro — of a weapon: deriving its force from nuclear energy
  • Ukrainian: я́дерний (jádernyj) — of a weapon: deriving its force from nuclear energy
  • Urdu: جَوہَری (jauharī) — of a weapon: deriving its force from nuclear energy
  • Uzbek: yadro — of a weapon: deriving its force from nuclear energy
  • Vietnamese: hạt nhân — of a weapon: deriving its force from nuclear energy
  • Yiddish: נוקלעאַר (nuklear) — of a weapon: deriving its force from nuclear energy
Real reading context

nuclear in complete knowledge articles