PENTAD n.
Any element, atom, or radical, having a valence of five, or which can be combined with, substituted for, or compared with, five atoms of hydrogen or other monad; as, nitrogen is a pentad in the ammonium compounds.
PHOSPHORIC a.
-- Soluble phosphoric acid, Insoluble phosphoric acid (Agric. Chem.), phosphoric acid combined in acid salts, or in neutral or basic salts, which are respectively soluble and insoluble in water or in plant juices. -- Reverted phosphoric acid (Agric. Chem.), phosphoric acid changed from acid (soluble) salts back to ne…
PISTOL n.
f many patterns, and bearing a great variety of names. See Illust. of Revolver. Pistol carbine, a firearm with a removable but- piece, and thus capable of being used either as a pistol or a carbine. -- Pistol pipe (Metal.), a pipe in which the blast for a furnace is heated, resembling a pistol in form. -- Pistol shot…