radiolarian (n.) 1862, from Radiolaria, Modern Latin class name, from L. radiolus, dim. of RADIUS (Cf. radius) (q.v.).

Etymology dictionary. 2014.

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  • Radiolarian — Ra di*o*la ri*an (r[=a] d[i^]*[ o]*l[=a] r[i^]*an), a. (Zo[ o]l.) Of or pertaining to the Radiolaria. n. One of the Radiolaria. [1913 Webster] …   The Collaborative International Dictionary of English

  • radiolarian — [rā΄dē ōler′ē ən] n. [< ModL Radiolaria < radiolus, dim. of L radius, ray (see RADIUS): from the radiating pseudopodia] any of several classes of one celled deep sea protozoans with long, slender pseudopodia and a spiny, or solid but… …   English World dictionary

  • Radiolarian — Taxobox color = lavender name = Radiolaria image width = 225px image caption = Radiolaria illustration from the Challenger Expedition 1873 76. fossil range = Cambrian Recent domain = Eukaryota regnum = Rhizaria superphylum = Retaria phylum =… …   Wikipedia

  • radiolarian — /ray dee oh lair ee euhn/, n. any minute, marine protozoan of the class Radiolaria, or, in some classification schemes, the superclass Actinopoda, having an amebalike body with radiating, filamentous pseudopodia and a usually elaborate outer… …   Universalium

  • 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

  • radiolarian — noun Any of many marine amoeboid protozoa, of subclass Radiolaria, having filamentous pseudopodia; they have intricate silica skeletons …   Wiktionary

  • radiolarian — [ˌreɪdɪə(ʊ) lɛ:rɪən] noun Zoology a single celled aquatic animal having a spherical amoeba like body with a spiny skeleton of silica. [Many species in the phylum Actinopoda.] Origin C19: from mod. L. radiolaria, from late L. radiolus faint ray ,… …   English new terms dictionary

  • radiolarian — ra·di·o·lar·i·an …   English syllables

  • radiolarian — ra•di•o•lar•i•an [[t]ˌreɪ di oʊˈlɛər i ən[/t]] n. mcr any of various very small marine protozoans of the class Radiolaria (or superclass Actinopoda), having slender radiating pseudopods and usu. bearing an elaborate outer skeleton • Etymology:… …   From formal English to slang

  • radiolarian — /ˌreɪdioʊˈlɛəriən/ (say .raydeeoh lairreeuhn) noun any of the Radiolaria, an extensive group or order of minute marine protozoans, having amoeba like bodies with fine radiating pseudopodia, and usually elaborate skeletons. {New Latin Radiolāria,… …   Australian English dictionary