Standard Lemma guide

porphyrin

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.

  • UK: /ˈpɔːfɪɹɪn/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈpɔɹfəɹɪn/

1

noun

Meaning 1

Any of a class of heterocyclic compounds containing pyrrole rings arranged in a square or other similar shape; they are important in biochemistry in a form with a metal atom in the central cavity (hemoglobin with iron, chlorophyll with magnesium, etc.).

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 various pigments distributed widely in living tissues

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: pigment

History

Etymology

From German Porphyrin, shortened from Hämatoporphyrin (“haematoporphyrin”).

Across languages

Translations

11 source translations are retained for this English entry.

  • Catalan: porfirina — heterocyclic compound
  • Chinese Cantonese: 卟啉 (buk1 lam4) — heterocyclic compound
  • Chinese Mandarin: 卟啉 (bǔlín) — heterocyclic compound
  • Finnish: porfyriini — heterocyclic compound
  • Galician: porfirina — heterocyclic compound
  • German: Porphyrin — heterocyclic compound
  • Italian: porfirina — heterocyclic compound
  • Japanese: ポルフィリン (porufirin) — heterocyclic compound
  • Korean: 포르피린 (poreupirin) — heterocyclic compound
  • Spanish: porfirina — heterocyclic compound
  • Turkish: porfirin — heterocyclic compound