出典:Wiktionary
出典:『Wiktionary』 (2026/04/03 16:41 UTC 版)
From Latin castoreum, from Ancient Greek καστόριον (kastórion).
castoreum (countable and uncountable, plural castoreums or castorea)
castoreum n (genitive castoreī); second declension
Second-declension noun (neuter).
| singular | plural | |
|---|---|---|
| nominative | castoreum | castorea |
| genitive | castoreī | castoreōrum |
| dative | castoreō | castoreīs |
| accusative | castoreum | castorea |
| ablative | castoreō | castoreīs |
| vocative | castoreum | castorea |