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pi·le·us | \ ˈpī-lē-əs 
\
\ plural pilei\ ˈpī-lē-ˌī \
\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
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More Definitions for pileus
pileus
nounpi·le·us | \ ˈpī-lē-əs \
\ plural pilei\ -lē-ˌī \
\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
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Time Traveler for pileus
The first known use of pileus was in 1663
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