PERUVIAN a.
of Peru, under Balsam. -- Peruvian bark, the bitter bark of trees of various species of Cinchona. It acts as a powerful tonic, and is a remedy for malarial diseases. This property is due to several alkaloids, as quinine, cinchonine, etc., and their compounds; -- called also Jesuit's bark, and cinchona. See Cinchona.…
PICK n.
te; hence, in describing the fineness of a fabric, a weft thread; as, so many picks to an inch. Pick dressing (Arch.), in cut stonework, a facing made by a pointed tool, leaving the surface in little pits or depressions. -- Pick hammer, a pick with one end sharp and the other blunt, used by miners.
PITCH n.
btained by dividing the number of teeth in a wheel by the diameter of its pitch circle in inches; as, 4 pitch, 8 pitch, etc. -- Pitch chain, a chain, as one made of metallic plates, adapted for working with a sprocket wheel. -- Pitch line, or Pitch circle (Gearing), an ideal line, in a toothed gear or rack, bearing s…