资料来源 : pyDict

辐射幼虫

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Actinula \Ac*tin"u*la\, n. pl. [NL., fr. Gr. ?, ?, a ray.]
   (Zo["o]l.)
   A kind of embryo of certain hydroids ({Tubularia}), having a
   stellate form.