Webster's Revised Unabridged Dictionary · 1913

Pileate

Pileate , adjective

[Latin pileatus, from pileus a felt cap or hat.]

1.
Having the form of a cap for the head.
2.
(Zoology) Having a crest covering the pileus, or whole top of the head.
Collocations (1)
Pileated woodpecker (Zoology) , a large American woodpecker (Ceophloeus pileatus). It is black, with a bright red pointed crest. Called also logcock, and woodcock.

Also: Pileated