beri-beri
Deficiency of thiamine, endemic in eastern and southern Asia and
characterized by neurological symptoms, cardiovascular abnormalities,
and edema.

Berserker
Ancient Norse warriors legendary for working themselves into a frenzy
before a battle and fighting with reckless savagery and insane fury.

bijouterie
Collection of trinkets or jewelry; decorations.

bilious
Relating to bile. Excess secretion of bile. Gastric distress caused by a
disorder of the liver or gallbladder. Resembling bile, especially in
color: a bilious green. Peevish disposition; ill-humored.

bistort
Eurasian perennial herb (Polygonum bistorta) with cylindrical spikes of
pink flowers and a rhizome used as an astringent in folk medicine.

blue flag
Several irises with blue or blue-violet flowers, especially Iris
versicolor of eastern North America.

blue stone (blue vitriol, blue copperas, chalcanthite)
Hydrated blue crystalline form of copper sulfate.

bobbinet
Machine-woven net fabric with hexagonal meshes.