pileus
noun pl. pilei
- a type of brimless cap worn in ancient Rome
- Bot. the cap of a mushroom, or the similar part of the fruiting body of other fungi
- Zool.
- the umbrella-shaped disk of a jellyfish
- pileum
See pileus in American Heritage Dictionary 4
(pīˈlē-əs)
noun pl. pi·le·i (-lē-īˌ) - Botany The umbrellalike fruiting structure forming the top of a stalked fleshy fungus, such as a mushroom; the cap.
- A brimless round skullcap worn by ancient Romans.
- See caul.
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