Standard Lemma guide

phthalazine

noun · 1 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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1

noun

Meaning 1

A bicyclic heterocycle consisting of a benzene ring fused to pyridazine

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

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

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

No etymology was provided for this word.

Across languages

Translations

5 source translations are retained for this English entry.

  • Chinese Cantonese: 酞嗪 (taai3 ceon4) — bicyclic heterocycle
  • Chinese Mandarin: 酞嗪 (tàiqín) — bicyclic heterocycle
  • Italian: ftalazina — bicyclic heterocycle
  • Japanese: フタラジン (futarajin) — bicyclic heterocycle
  • Korean: 프탈라진 (peutallajin) — bicyclic heterocycle