Defn: A salt of persulphocyanic acid. [R.]

PERSULPHOCYANIC
Per*sul`pho*cy*an"ic, a. (Chem.)

Defn: Pertaining to, or designating, a yellow crystalline substance (called also perthiocyanic acid), analogous to sulphocyanic acid, but containing more sulphur.

PERSULPHOCYANOGEN
Per*sul`pho*cy*an"o*gen, n. (Chem.)

Defn: An orange-yellow substance, produced by the action of chlorine or boiling dilute nitric acid and sulphocyanate of potassium; — called also pseudosulphocyanogen, perthiocyanogen, and formerly sulphocyanogen.

PERSULPHURET
Per*sul"phu*ret, n. (Chem.)

Defn: A persulphide. [Obs.]

PERT Pert, a. Etym: [An aphetic form of OE. & OF. apert open, known, true, free, or impudent. See Apert.]

1. Open; evident; apert. [Obs.] Piers Plowman.

2. Lively; brisk; sprightly; smart. [Obs.] Shak.