radiolarian

名词 radiolarian:

1. protozoa with amoeba-like bodies and radiating filamentous pseudopods

ra.di.o.lar.i.an

n.（名词）
Any of various marine protozoans of the order Radiolaria, having rigid siliceous skeletons and spicules.
放射虫：一种放射虫目的海生原生动物，骨骼和针骨为硅质

来源：
From New Latin Radiol3ria [order name]
源自 现代拉丁语 Radiol3ria [目名]
from Late Latin radiolus [diminutive of] radius [ray]
源自 后期拉丁语 radiolus [] radius的小后缀 [射线]