PLANK n.
One of the separate articles in a declaration of the principles of a party or cause; as, a plank in the national platform. [Cant] Plank road, or Plank way, a road surface formed of planks. [U.S.] -- To walk the plank, to walk along a plank laid across the bulwark of a ship, until one overbalances it and falls into the…
PLUCK v.
To reject at an examination for degrees. C. Bronté. To pluck away, to pull away, or to separate by pulling; to tear away. -- To pluck down, to pull down; to demolish; to reduce to a lower state. -- to pluck off, to pull or tear off; as, to pluck off the skin. -- to pluck up. (a) To tear up by the roots or from the f…
POLAR a.
also White bear. See Bear. -- Polar body, cell, or globule (Biol.), a minute cell which separates by karyokinesis from the ovum during its maturation. In the maturation of ordinary ova two polar bodies are formed, but in parthogenetic ova only one. The first polar body formed is usually larger than the second one, an…
PRECIPITATE n. 3 definitions
An insoluble substance separated from a solution in a concrete state 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. Che…