PIT n.
A depression or thin spot in the wall of a duct. Cold pit (Hort.), an excavation in the earth, lined with masonry or boards, and covered with glass, but not artificially heated, -- used in winter for the storing and protection of half-hardly plants, and sometimes in the spring as a forcing bed. -- Pit coal, coal dug f…
PRECIPITATE n. 2 definitions
te by the action of some reagent added to the solution, or of some force, such as heat or cold. The precipitate may fall to the bottom (whence the name), may be diffused through the solution, or may float at or near the surface. Red precipitate (Old. Chem), mercuric oxide (HgO) a heavy red crystalline powder obtained b…