Standard Lemma guide

iodine

noun · verb · 6 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.

  • ī'ədīn
  • ī'ədĭn
  • ī'ədēn
  • /ˈaɪ.əˌdaɪn
  • -dɪn
  • -diːn/
  • UK: Recorded audio is listed in the source snapshot.
  • General-American: Recorded audio is listed in the source snapshot.
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: AY1 AH0 D AY2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A chemical element (symbol: I) with an atomic number of 53; one of the halogens.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: iode

Antonyms: none provided

2

noun

Meaning 2

An antiseptic incorporating the element.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: tincture of iodine

Antonyms: none provided

3

noun

Meaning 3

An iodide.

Definition source: English Wiktionary via Wiktextract

Usage: countable, obsolete, uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

to treat with iodine.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: iodinate

Antonyms: none provided

5

noun

Meaning 5

a tincture consisting of a solution of iodine in ethyl alcohol; applied topically to wounds as an antiseptic

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: tincture of iodine

Antonyms: none provided

Broader terms: antiseptic, tincture

6

noun

Meaning 6

a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: iodin, I, atomic number 53

Antonyms: none provided

Broader terms: chemical element, element, halogen

Narrower terms: iodine-131, iodine-125

History

Etymology

From French iode + -ine, from Ancient Greek ἰοειδής (ioeidḗs, “violet”). Coined by British chemist Humphry Davy in 1814.

Across languages

Translations

119 source translations are retained for this English entry.

  • Afrikaans: jood — element
  • Albanian: jod — element
  • Arabic: يُود (yūd) — element
  • Armenian: յոդ (yod) — element
  • Armenian: մանիշ (maniš) — element
  • Asturian: yodu — element
  • Azerbaijani: ایود (iyōd) — element
  • Azerbaijani: yod — element
  • Azerbaijani: iod — element
  • Basque: iodoa — element
  • Belarusian: ёд (jod) — element
  • Breton: iod — element
  • Bulgarian: йод (jod) — element
  • Catalan: iode — element
  • Chinese Mandarin: 碘 (diǎn) — element
  • Cornish: eyodyn — element
  • Czech: jód — element
  • Danish: jod — element
  • Dutch: jood — element
  • Dutch: jodium — element
  • Erzya: ёда (joda) — element
  • Esperanto: jodo — element
  • Esperanto: iodo — element
  • Estonian: jood — element
  • Faroese: jod — element
  • Finnish: jodi — element
  • French: iode — element
  • West-Frisian: joadium — element
  • Friulian: jodi — element
  • Galician: iodo — element
  • Georgian: იოდი (iodi) — element
  • German: Jod — element
  • German: Iod — element
  • Greek: ιώδιο (iódio) — element
  • Hausa: aidin — element
  • Hebrew: יוד (yod) — element
  • Hindi: जंबुकी (jambukī) — element
  • Hungarian: jód — element
  • Icelandic: joð — element
  • Indonesian: yodium — element
  • Irish: iaidín — element
  • Italian: iodio — element
  • Japanese: ヨウ素 (yōso) — element
  • Japanese: 沃素 (yōso) — element
  • Japanese: ヨード (yōdo) — element
  • Kashubian: jód — element
  • Kazakh: йод (iod) — element
  • Korean: 요오드 (yoodeu) — element
  • Korean: 옥도 (okdo) — element
  • Korean: 옥소 (okso) — element
  • Korean: 요오듐 (yoodyum) — element
  • Korean: 아이오딘 (aiodin) — element
  • Kyrgyz: йод (yod) — element
  • Latin: iodium — element
  • Latvian: jods — element
  • Lithuanian: jodas — element
  • Luxembourgish: Iod — element
  • Macedonian: јод (jod) — element
  • Malay: iodin — element
  • Maltese: jodju — element
  • Manx: eeadeen — element
  • Māori: hautawa — element
  • Eastern Mari: йод (jod) — element
  • Mongolian: йод (jod) — element
  • Norwegian: jod — element
  • Occitan: iòde — element
  • Persian: ید (yod) — element
  • Polish: jod — element
  • Portuguese: iodo — element
  • Romanian: iod — element
  • Russian: йод (jod) — element
  • Russian: ио́д (iód) — element
  • Skolt-Sami: jåått — element
  • Scottish Gaelic: ìodain — element
  • Serbo-Croatian: јо̑д — element
  • Serbo-Croatian: jȏd — element
  • Slovak: jód — element
  • Slovene: jod — element
  • Spanish: yodo — element
  • Spanish: iodo — element
  • Swedish: jod — element
  • Tagalog: yodo — element
  • Tajik: йод (yod) — element
  • Tajik: иод (iod) — element
  • Tamil: அயடின் (ayaṭiṉ) — element
  • Thai: ไอโอดีน (ai-oo-diin) — element
  • Tok Pisin: aiadin — element
  • Tok Pisin: yot — element
  • Turkish: iyot — element
  • Ukrainian: йод (jod) — element
  • Uzbek: yod — element
  • Uzbek: йод (yod) — element
  • Vietnamese: iot — element
  • Vietnamese: iốt — element
  • Vietnamese: iođ — element
  • Volapük: yodin — element
  • Welsh: ïodin — element
  • Yiddish: יאָד (yod) — element
  • Bulgarian: йо́дна тинкту́ра (jódna tinktúra) — antiseptic
  • Bulgarian: йод (jod) — antiseptic
  • Chinese Mandarin: 碘酒 (diǎnjiǔ) — antiseptic
  • Chinese Mandarin: 碘酊 (diǎndǐng) — antiseptic
  • Chinese Mandarin: 優碘 /优碘 — antiseptic
  • Dutch: jodium — antiseptic
  • Dutch: jodiumtinctuur — antiseptic
  • Erzya: ёда (joda) — antiseptic
  • Finnish: joditinktuura — antiseptic
  • Finnish: jodisprii — antiseptic
  • German: Jodtinktur — antiseptic
  • Japanese: ヨードチンキ (yōdochinki) — antiseptic
  • Plautdietsch: Jood — antiseptic
  • Polish: jodyna — antiseptic
  • Portuguese: iodo — antiseptic
  • Romanian: tinctură de iod — antiseptic
  • Russian: раствор йода (rastvor joda) — antiseptic
  • Russian: ио́д (iód) — antiseptic
  • Tok Pisin: aiadin — antiseptic
  • Tok Pisin: yot — antiseptic
  • Yiddish: יאָד (yod) — antiseptic