A tea-like drink made by Native Americans, and then by others, having exhilarant and diuretic properties. It is thought to have been brewed with Ilex vomitoria (yaupon) or Ilex cassine leaves.

plural of black bloc

Black Peter.

Technical silence. Noise that has a frequency spectrum of predominantly zero power level over all frequencies except for a few narrow bands or spikes.

(Australia) An aborigine from the remote outback.

(music) Any of the notes (flats and sharps) produced by the black keys on a piano or similar keyed instrument.

plural of black-jack

(obsolete, mineralogy, UK) Sphalerite; zincblende. / (obsolete) Caramel or burnt sugar, used to colour wines, spirits, ground coffee, etc. / (obsolete) A large leather vessel for beer, etc.

Alternative form of nonblack

chernozem