Standard Lemma guide

atomicity

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.

  • Received-Pronunciation: /ˌætəˈmɪsɪti/
  • UK: Recorded audio is listed in the source snapshot.
  • General-American: /ˌætəˈmɪsɪti/
  • General-American: [-ɾə-]
  • General-American: [-ɾi]
  • rhymes with -ɪsɪti

1

noun

Meaning 1

The number of atoms in a molecule.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Synonym of valence (“the combining capacity of an atom, functional group, or radical determined by the number of atoms of hydrogen with which it will unite, or the number of electrons that it will gain, lose, or share when it combines with other atoms, etc.”).

Definition source: English Wiktionary via Wiktextract

Usage: countable, historical, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: valence

Antonyms: none provided

3

noun

Meaning 3

The state of a system (often a database system) in which either all stages complete or none complete.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The quality or state of being atomic.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-) Proto-Indo-European *temh1- Proto-Indo-European *-né- Ancient Greek τέμνω (témnō) Proto-Indo-European *-ós Proto-Hellenic *-ós ▲ Ancient Greek -ος (-os)influ. Ancient Greek -ός (-ós) Ancient Greek *τομός (*tomós) Ancient Greek ἄτομος (átomos)bor. Latin atomusbor. Middle French athomebor. Middle English attome English atom Proto-Indo-European *-ikos Proto-Italic *-ikos Latin -icuslbor. Old French -iquebor. Middle English -ik English -ic English atomic Proto-Indo-European *-teh2 Proto-Indo-European *-ts Proto-Indo-European *-teh2ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English atomicity From atomic + -ity.

Across languages

Translations

12 source translations are retained for this English entry.

  • Finnish: atomien lukumäärä — number of atoms in a molecule
  • Finnish: atomisuus — state of a system in which either all stages complete or none complete
  • Finnish: jakamattomuus — state of a system in which either all stages complete or none complete
  • Catalan: atomicitat — quality or state of being atomic
  • Finnish: atomisuus — quality or state of being atomic
  • Finnish: jakamattomuus — quality or state of being atomic
  • French: atomicité — quality or state of being atomic
  • German: Atomizität — quality or state of being atomic
  • German: Atomarität — quality or state of being atomic
  • German: Atomigkeit — quality or state of being atomic
  • Irish: adamhacht — quality or state of being atomic
  • Spanish: atomicidad — quality or state of being atomic