2 definitions
for Radiolaria
From The Collaborative International Dictionary of English v.0.48 :
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]
From WordNet (r) 2.0 :
Radiolaria
n : marine protozoa [syn: order Radiolaria]