Standard Lemma guide

diatomic

adj · noun · 4 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.

  • UK: /daɪəˈtɒmɪk/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: D AY2 AH0 T AA1 M IH0 K Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Consisting of two atoms.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: chemistry, natural-sciences, physical-sciences

Examples

  • diatomic molecule
  • diatomic element

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of or relating to diatoms.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable, rare

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: diatomaceous

Antonyms: none provided

3

noun

Meaning 3

A diatomic molecule or other species.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

adjective

Meaning 4

of or relating to a molecule made up of two atoms

Definition source: Princeton WordNet 3.0

Examples

  • a diatomic molecule

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From di- + atomic.

From diatom + -ic.

Across languages

Translations

8 source translations are retained for this English entry.

  • Azerbaijani: ikiatomlu — consisting of two atoms
  • Catalan: diatòmic — consisting of two atoms
  • Finnish: kaksiatominen — consisting of two atoms
  • French: diatomique — consisting of two atoms
  • Hungarian: kétatomos — consisting of two atoms
  • Icelandic: tvíatóma — consisting of two atoms
  • Irish: dé-adamhach — consisting of two atoms
  • Tagalog: dalmulpiknin — consisting of two atoms