Standard Lemma guide

pyridine

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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  • / ˈpɪrɪˌdin/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

Any of a class of aromatic heterocyclic compounds containing a ring of five carbon atoms and a nitrogen atom; especially the simplest one, C5H5N.

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

a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: base, alkali

Narrower terms: triphosphopyridine

History

Etymology

From German Pyridin.

Across languages

Translations

10 source translations are retained for this English entry.

  • Catalan: piridina — any of a class of aromatic heterocyclic compounds
  • Chinese Cantonese: 吡啶 (bei2 ding6) — any of a class of aromatic heterocyclic compounds
  • Chinese Mandarin: 吡啶 (bǐdìng) — any of a class of aromatic heterocyclic compounds
  • Italian: piridina — any of a class of aromatic heterocyclic compounds
  • Japanese: ピリジン (pirijin) — any of a class of aromatic heterocyclic compounds
  • Korean: 피리딘 (piridin) — any of a class of aromatic heterocyclic compounds
  • Polish: pirydyna — any of a class of aromatic heterocyclic compounds
  • Portuguese: piridina — any of a class of aromatic heterocyclic compounds
  • Russian: пириди́н (piridín) — any of a class of aromatic heterocyclic compounds
  • Spanish: piridina — any of a class of aromatic heterocyclic compounds