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n. pl. pi·le·i (-lē-ī′)
1. Botany The umbrellalike fruiting structure forming the top of a stalked fleshy fungus, such as a mushroom; the cap.
2. A brimless round skullcap worn by ancient Romans.
3. See caul.

[New Latin pīleus, from Latin, cap.]


(ˈpaɪlɪəs; ˈpɪl-)
n, pl -lei (-lɪˌaɪ)
(Botany) the upper cap-shaped part of a mushroom or similar spore-producing body
[C18 (botanical use): New Latin, from Latin: felt cap]


(ˈpaɪ li əs, ˈpɪl i-)

n., pl. pi•le•i (ˈpaɪ liˌaɪ, ˈpɪl iˌaɪ)
1. the horizontal portion of a mushroom, bearing gills, tubes, etc., on its underside; a cap.
2. the umbrella or bell of a jellyfish.
3. pileum.
4. a felt skullcap worn by the ancient Romans and Greeks.
[1750–60; < New Latin; Latin pīleus felt cap; akin to Greek pîlos felt, felt cap]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pileus - a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroompileus - a fruiting structure resembling an umbrella or a cone that forms the top of a stalked fleshy fungus such as a mushroom
fungus - an organism of the kingdom Fungi lacking chlorophyll and feeding on organic matter; ranging from unicellular or multicellular organisms to spore-bearing syncytia
plant part, plant structure - any part of a plant or fungus
References in periodicals archive ?
8 and the colour of the pileus is deep reddish brown as given for European H.
The results on the number of pileus per flushing was, in the first flush no significant difference, second flush no significant difference, third flush and the fifth flush no significant difference from each treatment.
The pileus of this mushroom with thin margin, smooth and pileus thickness is lesser as compares to P.
Nutritional characteristics of proteins from the volva and pileus in cultivated mushroom Dictyophora rubrovolvata.
Bristle groups of similar appearance and arrangement next to groups of lamellate bodies are found in the apical organ of Pleurobrachia pileus and Beroe ovata.
is a genus of agaricoid, mushroom-forming fungi, which are characterized by the presence of partial veil usually forming an annulus or leaving remnants at the pileus margin, adnate to adnexed lamellae and well-developed rhizomorphs on stipe base, which are densely covered by spiniform crystals called acanthocytes, the latter considered a diagnostic feature of the genus (Farr, 1980; Cortez & Silveira, 2008).
Cap or pileus (It is white' creamy or brown in color and almost smooth in structure.
The thick (up to 50 mm) flesh of the pileus is a dingy whitish colour, discolouring when exposed to the air (Fig.
Species were described using the diagnostic features of their fruiting bodies, considering traits such as the pileus, context, lamellae and stipe among other morphological characters (Mueller et al.
Nel suo San Giovanni, dove indossera il pileus, il cappello portato da coloro che sono banditi dalla citta.
It was stated that the pileus and stipe of the mushroom are cut into pieces, boiled and added to okro or vegetable soup [1].