cocoon
US /kəˈkuːn/
UK /kəˈkuːn/

名詞
1.
繭
a silky case spun by the larvae of many insects, especially silkworms, to protect themselves in the pupal stage
例:
•
The caterpillar spun a beautiful cocoon before transforming into a butterfly.
毛虫は蝶に変身する前に美しい繭を紡いだ。
•
The silkworm's cocoon is used to produce silk.
カイコの繭は絹を生産するために使われる。
動詞
Lingolandでこの単語を学ぶ