'Radiolaria' definitions:
Definition of 'Radiolaria'
From: WordNet
noun
Marine protozoa [syn: Radiolaria, order Radiolaria]
Definition of 'Radiolaria'
From: GCIDE
- Radiolaria \Ra`di*o*la"ri*a\ (r[=a]`d[i^]*[-o]*l[=a]"r[i^]*[.a]), n. pl. [NL. See Radioli.] (Zool.) Order of rhizopods, usually having a siliceous skeleton, or shell, and sometimes radiating spicules. The pseudopodia project from the body like rays. It includes the polycystines. See Polycystina. [1913 Webster]