Standard Lemma guide

castoreum

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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No pronunciation record was provided for this word.

1

noun

Meaning 1

The bitter exudate of the castor sacs of mature beavers, used as a scent mark, and as a tincture in some perfumes.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: castor

Antonyms: none provided

2

noun

Meaning 2

A hat made from beaver fur.

Definition source: English Wiktionary via Wiktextract

Usage: archaic, countable, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: beaver, castor

Antonyms: none provided

History

Etymology

From Latin castoreum, from Ancient Greek καστόριον (kastórion).

Across languages

Translations

33 source translations are retained for this English entry.

  • Arabic: جُنْدُبَادَسْتَر (jundubādastar) — castor sac exudate
  • Arabic: خُصْيْة الْبَحْر (ḵuṣya al-baḥr) — castor sac exudate
  • Aramaic: ܩܣܛܘܪܝܘܢ (/⁠qasṭōryōn⁠/) — castor sac exudate
  • Bulgarian: касто́реум (kastóreum) — castor sac exudate
  • Catalan: castori — castor sac exudate
  • Dutch: bevergeil — castor sac exudate
  • Dutch: castoreum — castor sac exudate
  • Finnish: majavanhausta — castor sac exudate
  • Finnish: hauste — castor sac exudate
  • French: castoréum — castor sac exudate
  • German: Bibergeil — castor sac exudate
  • German: Castoreum — castor sac exudate
  • Greek: καστόριο (kastório) — castor sac exudate
  • Ancient Greek: καστόρειον (kastóreion) — castor sac exudate
  • Ancient Greek: καστόριον (kastórion) — castor sac exudate
  • Italian: castoreo — castor sac exudate
  • Latin: castoreum — castor sac exudate
  • Macedonian: кастореум (kastoreum) — castor sac exudate
  • Norwegian Nynorsk: gjel — castor sac exudate
  • Persian: گندبیدستر (gonde-bidastar) — castor sac exudate
  • Polish: strój bobrowy — castor sac exudate
  • Polish: kastoreum — castor sac exudate
  • Portuguese: castóreo — castor sac exudate
  • Russian: бобро́вая струя́ (bobróvaja strujá) — castor sac exudate
  • Russian: касто́реум (kastóreum) — castor sac exudate
  • Serbo-Croatian: kastoreum — castor sac exudate
  • Slovene: kastoréum — castor sac exudate
  • Spanish: castóreo — castor sac exudate
  • Swedish: bävergäll — castor sac exudate
  • Tatar: кондыз агынтысы (qondız ağıntısı) — castor sac exudate
  • Ottoman Turkish: جند بیدستر (cünd-i bidester) — castor sac exudate
  • Ukrainian: бобро́ва струя́ (bobróva strujá) — castor sac exudate
  • Ukrainian: касто́реум (kastóreum) — castor sac exudate