Defn: A grayish or dark green mineral, consisting essentially of magnesia (magnesium oxide), occurring in granular forms or in isometric crystals.

PERICLINIUM
Per`i*clin"i*um, n.; pl. Periclinia. Etym: [NL., fr. Gr. (Bot.)

Defn: The involucre which surrounds the common receptacle in composite flowers.

PERICLITATE Pe*ric"li*tate, v. t. Etym: [L. periclitatus, p.p. of periclitari, fr. periculum.]

Defn: To endanger. [Obs.]
Periclitating, pardi! the whole family. Sterne.

PERICLITATION
Pe*ric`li*ta"tion, n. Etym: [L. periclitatio: cf. F. périclitation.]

1. Trial; experiment. [Obs.]

2. The state of being in peril. [Obs.]

PERICOPE
Pe*ric"o*pe, n. Etym: [L., section of a book, Gr.

Defn: A selection or extract from a book; especially (Theol.), a selection from the Bible, appointed to be read in the churches or used as a text for a sermon.