Standard Lemma guide

diol

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

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  • /ˈdaɪ.ɒl/
  • UK: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

any organic compound having two hydroxy functional groups

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any of a class of alcohols having 2 hydroxyl groups in each molecule

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: glycol, dihydric alcohol

Antonyms: none provided

Broader terms: alcohol

History

Etymology

From di- + -ol.

Across languages

Translations

6 source translations are retained for this English entry.

  • French: diol — organic compound
  • German: Diol — organic compound
  • Polish: diol — organic compound
  • Russian: дио́л (diól) — organic compound
  • Spanish: diol — organic compound
  • Welsh: deuol — organic compound