Definition of radiolaria in English:

radiolaria

Syllabification: ra·di·o·lar·i·a
Pronunciation: /ˌrādeəˈlerēə
 
/

noun

Zoology
  • Radiolarians collectively.
    More example sentences
    • Fewer than 250,000 fossils - most are ‘large microbes,’: foraminifera, radiolaria, coccolithophores or diatoms - are named in the paleontological literature.
    • As in other radiolaria, Acantharea have a gelatinous ectoplasm filled with vacuoles, separated from the inner cell mass by a fibrous capsular wall.
    • The marine biostratigraphy is based upon microfaunas and floras, notably planktonic foraminifera and radiolaria.

Origin

late 19th century: modern Latin (former order name), from late Latin radiolus 'faint ray', diminutive of radius 'ray'.

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