[医] 放射虫类

[ noun ]
marine protozoa
<noun.animal>

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 includes the
polycystines. See {Polycystina}.