Standard Lemma guide

dimer

noun · 2 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.

  • /ˈdaɪmə(ɹ)/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: D AY1 M ER0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A molecule consisting of two identical halves, formed by joining two identical molecules, sometimes with a single atom acting as a bridge.

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

Broader terms: oligomer, molecule, compound

2

noun

Meaning 2

a compound whose molecules are composed of two identical monomers

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: compound, chemical compound

History

Etymology

From di- + -mer.

Across languages

Translations

10 source translations are retained for this English entry.

  • Bulgarian: диме́р (dimér) — a molecule consisting of two identical halves
  • Catalan: dímer — a molecule consisting of two identical halves
  • Czech: dimer — a molecule consisting of two identical halves
  • Finnish: dimeeri — a molecule consisting of two identical halves
  • French: dimère — a molecule consisting of two identical halves
  • French: endoestas — a molecule consisting of two identical halves
  • Italian: dimero — a molecule consisting of two identical halves
  • Polish: dimer — a molecule consisting of two identical halves
  • Russian: диме́р (dimér) — a molecule consisting of two identical halves
  • Spanish: dímero — a molecule consisting of two identical halves