PERIOSTITIS
Per`i*os*ti"tis, n. Etym: [NL. See Periosteum, and -itis.] (Med.)

Defn: Inflammation of the periosteum.

PERIOSTRACUM
Per`i*os"tra*cum, n.; pl. Periostraca. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A chitinous membrane covering the exterior of many shells; — called also epidermis.

PERIOTIC
Per`i*o"tic, a. Etym: [Pref. peri- + Gr. (Anat.)

Defn: Surrounding, or pertaining to the region surrounding, the internal ear; as, the periotic capsule. — n.

Defn: A periotic bone.

PERIPATECIAN
Per`i*pa*te"cian, n.

Defn: A peripatetic. [Obs.]

PERIPATETIC
Per`i*pa*tet"ic, a. Etym: [L. peripateticus, Gr. péripatétique.]