What is "pilei"

Pileus \Pi"le*us\, n.; pl. Pilei. [L., a felt cap.]

1. (Rom. Antiq.) A kind of skull cap of felt.

2. (Bot.) The expanded upper portion of many of the fungi. See Mushroom.

3. (Zo["o]l.) The top of the head of a bird, from the bill to the nape.

1. n. a fruiting structure resembling an umbrella that forms the top of a stalked fleshy fungus such as a mushroom [syn: cap]

2. [also: pilei (pl)]

See pileus