The Collaborative International Dictionary of English v.0.48:
Friar \Fri"ar\, n. [OR. frere, F. fr[`e]re brother, friar, fr.
L. frater brother. See Brother.]
1. (R. C. Ch.) A brother or member of any religious order,
but especially of one of the four mendicant orders, viz:
(a) Minors, Gray Friars, or Franciscans. (b)
Augustines. (c) Dominicans or Black Friars. (d) White
Friars or Carmelites. See these names in the Vocabulary.
2. (Print.) A white or pale patch on a printed page.
3. (Zool.) An American fish; the silversides.
Friar bird (Zool.), an Australian bird (Tropidorhynchus
corniculatus), having the head destitute of feathers; --
called also coldong, leatherhead, pimlico; poor
soldier, and four-o'clock. The name is also applied to
several other species of the same genus.
Friar's balsam (Med.), a stimulating application for wounds
and ulcers, being an alcoholic solution of benzoin,
styrax, tolu balsam, and aloes; compound tincture of
benzoin. --Brande & C.
Friar's cap (Bot.), the monkshood.
Friar's cowl (Bot.), an arumlike plant (Arisarum vulgare)
with a spathe or involucral leaf resembling a cowl.
Friar's lantern, the ignis fatuus or Will-o'-the-wisp.
Friar skate (Zool.), the European white or sharpnosed skate
(Raia alba); -- called also Burton skate, border
ray, scad, and doctor.