Defn: That state or condition of the pulse in which the pulse curve, or sphygmogram, shows several secondary crests or elevations; — contrasted with monocrotism and dicrotism.
POLYCYSTID Pol`y*cys"tid, n. (Zoöl.) (a) One of the Polycystidea. (b) One of the Polycystina. — a.
Defn: Pertaining to the Polycystidea, or the Polycystina.
POLYCYSTIDEA
Pol`y*cys*tid"e*a, n. pl. Etym: [NL. See Poly-, and Cystidea.]
(Zoöl.)
Defn: A division of Gregarinæ including those that have two or more internal divisions of the body.
POLYCYSTINA
Pol`y*cys*ti"na, n. pl. Etym: [NL. See Poly-, and Cyst.] (Zoöl.)
Defn: A division of Radiolaria including numerous minute marine species. The skeleton is composed of silica, and is often very elegant in form and sculpture. Many have been found in the fossil state.
POLYCYSTINE
Pol`y*cys"tine, a. (Zoöl.)
Defn: Pertaining to the Polycystina.
— n.
Defn: One of the Polycystina.