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A brownish green pigment found in human gallstones and in old bile. It is a derivative of bilirubin.

Bisexual. [Obs.] Sir T. Browne.

A dark brown pigment extracted from the soot of wood.

Bisulcate. Sir T. Browne.

nous matter. It burns with a yellow smoky flame. -- Bituminous limestone, a mineral of a brown or black color, emitting an unpleasant smell when rubbed. That of Dalmatia is so charged with bitumen that it may be cut like soap. -- Bituminous shale, an argillaceous shale impregnated with bitumen, often accompanying coa…

Having, or leading, two ways. Bivious theorems and Janus-faced doctrines. Sir T. Browne.

k-jack. It is a zinc sulphide, but often contains some iron. Its color is usually yellow, brown, or black, and its luster resinous.

A knot or short curl of hair; also, a bob wig. A plain brown bob he wore. Shenstone.

American singing bird (Dolichonyx oryzivorus). The male is black and white; the female is brown; -- called also, ricebird, reedbird, and Boblincoln. The happiest bird of our spring is the bobolink. W. Irving.

gale. -- Bog ore. (Min.) (a) An ore of iron found in boggy or swampy land; a variety of brown iron ore, or limonite. (b) Bog manganese, the hydrated peroxide of manganese. -- Bog rush (Bot.), any rush growing in bogs; saw grass. -- Bog spavin. See under Spavin.

A humming sound; a booming. To . . . silence the bombilation of guns. Sir T. Browne.

öcercus eurycercus of West Africa, and B. isaaci of East Africa) of a reddish or chestnut-brown color with narrow white stripes on the body. Their flesh is especially esteemed as food.

(Orcynus pelamys) allied to the tunny. It is about three feet long, blue above, with four brown stripes on the sides. It is sometimes found on the American coast.

a rope; as the boughts of a serpent. [Obs.] Spenser. The boughts of the fore legs. Sir T. Browne.

A kind of mineral coal, or brown lignite, burning with a weak flame, and generally a disagreeable odor; -- found at Bovey Tracey, Devonshire, England. It is of geological age of the oölite, and not of the true coal era.

Without pity. Sir T. Browne.

bounding with brambles, shrubs, or ferns; rough; thorny. In the woods and braky glens. W. Browne.

A native oxide of manganese, of dark brownish black color. It was named from a Mr. Braun of Gotha.

Shamelessly impudent. Sir T. Browne.

To burn. [Obs.] Chaucer. Consuming fire brent his shearing house or stall. W. Browne.