Defn: Pertaining to the perigee. Perigean tides, those spring tides which occur soon after the moon passes her perigee.
PERIGEE; PERIGEUM
Per"i*gee, Per`i*ge"um, n. Etym: [NL. perigeum, fr. Gr. périgée.]
(Astron.)
Defn: That point in the orbit of the moon which is nearest to the earth; — opposed to Ant: apogee. It is sometimes, but rarely, used of the nearest points of other orbits, as of a comet, a planet, etc. Called also epigee, epigeum.
PERIGENESIS
Per`i*gen"e*sis, n. (Biol.)
Defn: A theory which explains inheritance by the transmission of the type of growth force possessed by one generation to another.
PERIGENETIC
Per`i*gen"e*tic, a. (Biol.)
Defn: Of or pertaining to perigenesis.
PERIGONE
Per"i*gone, n. Etym: [Pref. peri- + Gr.
1. (Bot.) (a) Any organ inclosing the essential organs of a flower; a perianth. (b) In mosses, the involucral bracts of a male flower.
2. (Zoöl.)