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PERIG'YNOUS, a. [Gr. about, and female.] In botany, inserted around the pistil, ...
PERIHE'LION PERIHE'LIUM, n. [Gr. about, and the sun.] That part of the orbit of ...
PERIHEXAHE'DRAL, a. [Gr.] Designating a crystal whose primitive form is a four s...
PER'IL, n. [L. periculum, from Gr. to try, to attempt, that is, to strain; an at...
PER'ILOUS, a. Dangerous; hazardous; full of risk; as a perilous undertaking; a p...
PER'ILOUSLY, adv. Dangerously; with hazard.
PER'ILOUSNESS, n. Dangerousness; danger; hazard.
PERIM'ETER, n. [Gr. about, and measure.] In geometry, the bounds and limits of a...
PERIOCTAHE'DRAL, a. [Gr. octahedral.] Designating a crystal whose primitive form...
PE'RIOD, n. [L. periodus; Gr. about, and way.] 1. Properly, a circuit; hence, th...
PERIOD'IC PERIOD'ICAL, a. 1. Performed in a circuit, or in a regular revolution ...
PERIOD'ICALLY, adv. At stated periods; as a festival celebrated periodically.
PERIOS'TEUM, n. [Gr. about, and bone.] A nervous vascular membrane endued with q...
PERIPATET'IC, a. [Gr. to walk about.] Pertaining to Aristotle's system of philos...
PERIPATET'ICISM, n. The notions or philosophical system of Aristotle and his fol...
PERIPH'ERAL, a. Peripheric.