noun
castor oil plant; castor bean
Refers to the plant Ricinus communis, known for its seeds that produce castor oil. The term can also refer to the bean itself.
トウゴマの種子からひまし油が採れる。
Castor oil is extracted from the seeds of the castor oil plant.
庭にトウゴマが生えている。
A castor oil plant is growing in the garden.
ひまし油 is castor oil, the product derived from トウゴマ seeds.
The name トウゴマ (唐胡麻) literally means 'Chinese sesame', referring to the plant's origin and the resemblance of its seeds to sesame seeds.