Translation guide
The English word 'castor' can refer to a beaver, its fur, or a type of oil. This guide focuses on the animal meaning, which is the most common for learners.
Referring to the animal, especially the North American or European beaver.
The most common and natural way to refer to a beaver in Japanese. This is a loanword from English.
ビーバーはダムを作る動物です。
Beavers are animals that build dams.
A rare, literary term for beaver, literally 'sea raccoon dog'. Not used in everyday speech.
海狸の毛皮は高価です。
Beaver fur is expensive.
Referring to the oil derived from castor beans.
The standard term for castor oil in Japanese.
Castor oil is used as a laxative.
Loanword from English, used in some contexts like cosmetics or industrial products.
この石鹸にはカスターオイルが含まれています。
This soap contains castor oil.