n. 放射虫

[ noun ]
protozoa with amoeba-like bodies and radiating filamentous pseudopods
<noun.animal>

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.