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Pileus
//ˈpɪliəs// noun
Definitions
Noun
- 1 The cap of a mushroom.
"The stem is easily separable from the pileus at its junction, in this respect being similar to Amanita, Amanitopsis, Lepiota and others."
- 2 a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom wordnet
- 3 The bell of a jellyfish.
- 4 A small thin cloud attached to a cumulus cloud.
"The most short-lived of all the accessory clouds, pileus is also the most beautiful."
- 5 A conical felt hat worn in Ancient Rome and Greece. Ancient-Rome, historical
"Among the Romans the cap of felt was the emblem of liberty. When a slave obtained his freedom he had his head shaved, and wore instead of his hair an undyed pileus."
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- 6 The top of the head of a bird, from the bill to the nape.
Etymology
Borrowed from Latin pīleus, a form of pilleus (“a felt cap”).
See also for "pileus"
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