pileus

noun
pi·​le·​us | \ ˈpī-lē-əs How to pronounce pileus (audio) \
plural pilei\ ˈpī-​lē-​ˌī How to pronounce pilei (audio) \

Definition of pileus

1 [Latin] : a pointed or close-fitting cap worn by ancient Romans
2 : the convex, concave, or flattened spore-bearing structure of some basidiomycetes that is attached superiorly to the stem and typically is expanded with gills or pores on the underside

called also cap

First Known Use of pileus

1663, in the meaning defined at sense 1

History and Etymology for pileus

New Latin, from Latin

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Time Traveler for pileus

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The first known use of pileus was in 1663

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Cite this Entry

“Pileus.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/pileus. Accessed 24 January 2020.

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More Definitions for pileus

pileus

noun
pi·​le·​us | \ ˈpī-lē-əs How to pronounce pileus (audio) \
plural pilei\ -​lē-​ˌī How to pronounce pilei (audio) \

Medical Definition of pileus

: the convex, concave, or flattened spore-bearing structure of some basidiomycetous fungi that is attached to the top of the stem and typically is expanded with gills or pores on the underside

called also cap

More from Merriam-Webster on pileus

Britannica.com: Encyclopedia article about pileus

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