1. Like stone; hard; stony; rocky; as, the petrous part of the temporal bone. Hooper.

2. (Anat.)

Defn: Same as Petrosal.

PETTICHAPS
Pet"ti*chaps, n. (Zoöl.)

Defn: See Pettychaps.

PETTICOAT
Pet"ti*coat, n. (Zoöl.) Etym: [Petty + coat.]

Defn: A loose under-garment worn by women, and covering the body below the waist. Petticoat government, government by women, whether in politics or domestic affairs. [Colloq.] — Petticoat pipe (Locomotives), a short, flaring pipe surrounding the blast nozzle in the smoke box, to equalize the draft.

PETTIFOG
Pet"ti*fog, v. i. [imp. & p. p. Pettifogged; p. pr. & vb. n.
Pettifogging.] Etym: [Petty + fog to pettifog.]

Defn: To do a petty business as a lawyer; also, to do law business in a petty or tricky way. "He takes no money, but pettifogs gratis." S. Butler.

PETTIFOG
Pet"ti*fog, v. t.