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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Dictionary Entries near pileus

pile start

pileum

pileup

pileus

pilework

pileworm

pilewort

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Time Traveler for pileus

The first known use of pileus was in 1663

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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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