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n. pl. pi·le·a (-lē-ə)
The top of a bird's head, extending from the base of the bill to the nape.

[New Latin pīleum, from Latin pīleus, felt cap.]


(ˈpaɪlɪəm; ˈpɪl-)
n, pl -lea (-lɪə)
(Zoology) the top of a bird's head from the base of the bill to the occiput
[C19: New Latin, from Latin pileus]


(ˈpaɪ li əm, ˈpɪl i-)

n., pl. pi•le•a (ˈpaɪ li ə, ˈpɪl i ə)
the top of the head of a bird, from the base of the bill to the nape.
[1870–75; < New Latin; Latin pīleum, neuter variant of pīleus felt cap]
References in periodicals archive ?
EG compared the specimen with 35 others in Museu Goeldi's ornithological collection, collected at a variety of localities in Acre (Guilherme 2009), and noted the pileum was distinctly blackish in contrast with the gray of those of other specimens of Chestnut-tailed Antbird.
Pileus" is the ceremonial cap worn by a doctor of divinity: "Non omnes vere theologi qui pileum theologicum gerunt," says Erasmus in the Adagia (no.
Caput vero muniant vitta candida, et velum desuper nigrum, et pro tonsura capillorum pileum agninum, cum opus fuerit supponatur' (PL, CLXXVIII, cols 301A-302B; ed.