PYROLOGIST
Py*rol"o*gist, n.
Defn: One who is versed in, or makes a study of, pyrology.
PYROLOGY
Py*rol"o*gy, n. Etym: [Pyro- + -logy: cf. F. pyrologie.]
Defn: That branch of physical science which treats of the properties, phenomena, or effects of heat; also, a treatise on heat.
PYROLUSITE
Pyr`o*lu"site, n. Etym: [Pyro- + Gr. (Min.)
Defn: 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).
PYROMAGNETIC
Pyr`o*mag*net"ic, a. Etym: [Pyro- + magnetic.] (Physics)
Defn: Acting by the agency of heat and magnetism; as, a pyromagnetic machine for producing electric currents.
PYROMALATE
Pyr`o*ma"late, n. (Chem.)
Defn: A salt of pyromalic acid. [Obs.]