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pileus

Syllabification: (pi·le·us)
Pronunciation: /ˈpīlēəs, ˈpil/
Definition of pileus

noun (plural pilei /-lēˌī/)

Botany
  • the cap of a mushroom or toadstool.

Origin:

mid 18th century: from Latin, literally 'felt cap'

pileus in other Oxford dictionaries

Definition of pileus in the British & World English dictionary