Black"tail` (&?;), n. [Black + tail.] 1. (Zoöl.) A fish; the ruff or pope.
2. (Zoöl.) The black-tailed deer (Cervus or Cariacus Columbianus) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer.
Black"thorn` (&?;), n. (Bot.) (a) A spreading thorny shrub or small tree (Prunus spinosa), with blackish bark, and bearing little black plums, which are called sloes; the sloe. (b) A species of Cratægus or hawthorn (C. tomentosa). Both are used for hedges.
Black" vom"it (&?;). (Med.) A copious vomiting of dark-colored matter; or the substance so discharged; -- one of the most fatal symptoms in yellow fever.
{ Black" wash` (&?;) or Black"wash }, n. 1. (Med.) A lotion made by mixing calomel and lime water.