PYROMORPHITE
Pyr`o*mor"phite, n. Etym: [G. pyromorphit, from Gr. (Min.)
Defn: Native lead phosphate with lead chloride, occurring in bright green and brown hexagonal crystals and also massive; — so called because a fused globule crystallizes in cooling.
PYROMORPHOUS
Pyr`o*mor"phous, a. Etym: [Pyro- + -morphous.] (Min.)
Defn: Having the property of crystallizing by the agency of fire.
PYROMUCATE
Pyr`o*mu"cate, n. (Chem.)
Defn: A salt of pyromucic acid.
PYROMUCIC
Pyr`o*mu"cic, a. Etym: [Pyro- + mucic.] (Chem.)
Defn: Pertaining to, derived from, or designating, an acid obtained as a white crystalline substance by the distillation of mucic acid, or by the oxidation of furfurol.
PYRONE
Py`rone, n. [G. pyron, an abbr. of pyrokoman.] (Org. Chem.)
Defn: An unsaturated cyclic compound, C5H4O2, of which two varieties are known, a and g. g-pyrone is the parent substance of several natural yellow dyestuffs.