Polycystina
Polycystina Pol`y*cys*ti"na, n. pl. [NL. See {Poly-}, and {Cyst}.] (Zo["o]l.) 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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Polycystid — Pol y*cys tid, n. (Zo[ o]l.) (a) One of the Polycystidea. (b) One of the Polycystina. a. Pertaining to the Polycystidea, or the Polycystina. [1913 Webster] …   The Collaborative International Dictionary of English

  • Polycystine — Pol y*cys tine, a. (Zo[ o]l.) Pertaining to the Polycystina. n. One of the Polycystina. [1913 Webster] [1913 Webster] …   The Collaborative International Dictionary of English

  • polycystid — 1. noun a) One of the Polycystidea. b) One of the Polycystina. 2. adjective Pertaining to the Polycystidea, or the Polycystina …   Wiktionary

  • polycystine — 1. adjective Pertaining to the Polycystina. 2. noun a) One of the Polycystina. b) a homopolymer of the amino acid cystine …   Wiktionary

  • Radiolaria — Ra di*o*la ri*a (r[=a] d[i^]*[ o]*l[=a] r[i^]*[.a]), n. pl. [NL. See {Radioli}.] (Zo[ o]l.) Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It… …   The Collaborative International Dictionary of English

  • radiolarian — noun Date: 1875 any of three classes (Acantharia, Polycystina, and Phaeodaria) of usually spherical chiefly planktonic marine protozoans having radiating threadlike pseudopodia and often a siliceous skeleton of spicules • radiolarian adjective …   New Collegiate Dictionary

  • Radiolaria — Radiolaires Haeckel …   Wikipédia en Français

  • protist — protistan /proh tis teuhn/, adj., n. protistic, adj. /proh tist/, n. any of various one celled organisms, classified in the kingdom Protista, that are either free living or aggregated into simple colonies and that have diverse reproductive and… …   Universalium

  • polycystidan — polyˈcystidan, a. (n.) Zool. [f. as prec., or (in b.) from mod.L. Polycystida + an.] a. Belonging to the Polycystidea; as n. one of these: see prec. b. Belonging to the Polycystida, a family of Polycystina; as n. one of these: see next …   Useful english dictionary

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