Defn: A sort of hand cannon, or portable firearm, used in France in the 15th century.
PETROSAL Pe*tro"sal, a. Etym: [See Petrous.] (Anat.) (a) Hard; stony; petrous; as, the petrosal bone; petrosal part of the temporal bone. (b) Of, pertaining to, or in the region of, the petrous, or petrosal, bone, or the corresponding part of the temporal bone. Petrosal bone (Anat.), a bone corresponding to the petrous portion of the temporal bone of man; or one forming more or less of the periotic capsule.
PETROSAL Pe*tro"sal, n. (Anat.) (a) A petrosal bone. (b) The auditory capsule. Owen.
PETROSILEX
Pet`ro*si"lex, n. Etym: [Petro + silex.] (Min.)
Defn: Felsite.
PETROSILICIOUS
Pet`ro*si*li"cious, a.
Defn: Containing, or consisting of, petrosilex.
PETROSTEARINE
Pet`ro*ste"a*rine, n. Etym: [Petro + stearine.]
Defn: A solid unctuous material, of which candles are made.
PETROUS
Pe"trous, a. Etym: [L. petrosus, fr. petra a stone.]