Per`i*gan`gli*on"ic (?), a. (Anat.) Surrounding a ganglion; as, the
periganglionic glands of the frog.
Per`i*gas"tric (?), a. (Zoˆl.) Surrounding the stomach; -- applied to
the body cavity of Bryozoa and various other Invertebrata.
Per`i*ge"an (?), a. Pertaining to the perigee.
Perigean tides, those spring tides which occur soon after the moon
passes her perigee.
{ Per"i*gee (?), Per`i*ge"um (?), } n. [NL. perigeum, fr. Gr. &?;
about, near + &?; the earth: cf. F. pÈrigÈe.] (Astron.) That point in
the orbit of the moon which is nearest to the earth; -- opposed to
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.
Per`i*gen"e*sis (?), n. (Biol.) A theory which explains inheritance by
the transmission of the type of growth force possessed by one
generation to another.
Per`i*gen"e*tic (?), a. (Biol.) Of or pertaining to perigenesis.
Per"i*gone (?), n. [Pref. peri- + Gr. &?; productive organs.] 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. (Zoˆl.) A sac which surrounds the generative bodies in the gonophore
of a hydroid.
||Per`i*go"ni*um (?), n.; pl. Perigonia (#). [NL.] Same as Perigone.
Per"i*gord pie` (?). [From PÈrigord, a former province of France.] A
pie made of truffles, much esteemed by epicures.
Per"i*graph (?), n. [Gr. &?; outline; &?; round, about + &?; to write.]
A careless or inaccurate delineation of anything. [R.]
||Per`i*gyn"i*um (?), n.; pl. Perigynia (#). [NL. See Perigynous.]
||(Bot.) Some unusual appendage about the pistil, as the bottle-shaped
||body in the sedges, and the bristles or scales in some other genera
||of the Sedge family, or CyperaceÊ.
Pe*rig"y*nous (?), a. [Pref. peri- + Gr. &?; woman.] (Bot.) Having the
ovary free, but the petals and stamens borne on the calyx; -- said of
flower such as that of the cherry or peach.
{ Per`i*hel"ion (?), Per`i*he"li*um (?), } n.; pl. Perihelia (#). [NL.,
fr. Gr. &?; about, near + &?; the sun.] (Astron.) That point of the
orbit of a planet or comet which is nearest to the sun; -- opposed to
aphelion.
Per"il (?), n. [F. pÈril, fr. L. periculum, periclum, akin to peritus
experienced, skilled, and E. fare. See Fare, and cf. Experience.]
Danger; risk; hazard; jeopardy; exposure of person or property to
injury, loss, or destruction.
In perils of waters, in perils of robbers.