2. (Physiol. Chem.) A poison separable from decomposed meat infusions,
and supposed to be formed from albuminous matter through the agency of
bacteria.
Pyr`o*gen"ic (?), a. [Pyro- + -gen + -ic.] (Physiol.) Producing heat;
-- said of substances, as septic poisons, which elevate the temperature
of the body and cause fever.
Py*rog"e*nous (?), a. [Gr. &?; fire + genous: cf. F. purogËne, Gr.
&?;.] Produced by fire; igneous. Mantell. .
Pyr`og*nos"tic (?), a. [Pyro- + Gr. &?; to know.] (Min.) Of or
pertaining to characters developed by the use of heat; pertaining to
the characters of minerals when examined before the blowpipe; as, the
pyrognostic characters of galena.
Pyr`og*nos"tics (?), n. pl. (Min.) The characters of a mineral observed
by the use of the blowpipe, as the degree of fusibility, flame
coloration, etc.
Py*rog"ra*phy (?), n. [Pyro- + -graphy.] A process of printing,
ornamenting, or carving, by burning with heated instruments.
Py*rol"a*tor (?), n. [See Pyrolatry.] A fire worshiper. [R.] Southey.
Py*rol"a*try (?), n. [Pyro- + Gr. &?; worship: cf. F. pyrol‚trie.] The
worship of fire. Young.
{ Pyr`o*lig"ne*ous (?), Pyr`o*lig"nic (?), } a. [Pyro-+ L. lignum wood:
cf. F. pyroligneux.] (Old Chem.) Pertaining to, or designating, the
acid liquid obtained in the distillation of wood, consisting
essentially of impure acetic acid.
Pyr`o*lig"nous (?), a. Same as Pyroligneous.
Pyr`o*lith"ic (?), a. [Pyro- + lithic.] (Old Chem.) Same as Pyrouric,
or Cyanuric.
Py*rol"o*gist (?), n. One who is versed in, or makes a study of,
pyrology.
Py*rol"o*gy (?), n. [Pyro- + - logy: cf. F. pyrologie.] That branch of
physical science which treats of the properties, phenomena, or effects
of heat; also, a treatise on heat.
Pyr`o*lu"site (?), n. [Pyro- + Gr. &?; to loose, or &?; a loosing.]
(Min.) Manganese dioxide, a mineral of an iron-black or dark steel-gray
color and metallic luster, usually soft. Pyrolusite parts with its
oxygen at a red heat, and is extensively used in discharging the brown
and green tints of glass (whence its name).
Pyr`o*mag*net"ic (?), a. [Pyro- + magnetic.] (Physics) Acting by the
agency of heat and magnetism; as, a pyromagnetic machine for producing
electric currents.