noun
- Plural of castor or castoreum; a strong-smelling substance secreted by beaver glands, historically used in perfumery, medicine, and as a food additive.
Usage: Often used in historical or technical contexts related to perfume, traditional medicine, or food flavoring.; The singular form is 'castor' or 'castoreum'.
Examples
- Medieval physicians valued castoreums for their purported healing properties.
- The perfumer studied historical recipes that called for castoreums as a base note.
- Castoreums were once a common ingredient in vanilla-flavored foods and beverages.
- The trade in castoreums declined as synthetic alternatives became available.
- Some traditional medicines still incorporate castoreums in their formulations.