Defn: See Pirogue.
PERIANTH Per"i*anth, n. Etym: [Pref. peri- + Gr. périanthe.] (Bot.) (a) The leaves of a flower generally, especially when the calyx and corolla are not readily distinguished. (b) A saclike involucre which incloses the young fruit in most hepatic mosses. See Illust. of Hepatica.
PERIANTHIUM
Per`i*an"thi*um, n. Etym: [NL.] (Bot.)
Defn: The perianth.
PERIAPT
Per"i*apt, n. Etym: [Gr. périapte.]
Defn: A charm worn as a protection against disease or mischief; an
amulet. Coleridge.
Now help, ye charming spells and periapts. Shak.
PERIASTRAL
Per`i*as"tral, a.
Defn: Among or around the stars. "Comets in periastral passage." R.
A. Proctor.
PERIASTRON
Per`i*as"tron, n. Etym: [NL., fr. Gr. (Astron.)
Defn: That point, in the real or apparent orbit of one star revolving around another, at which the former is nearest to the latter.