Actinula

• (n. pl.) A kind of embryo of certain hydroids (Tubularia), having a stellate form.
Found on http://thinkexist.com/dictionary/meaning/actinula/

Actinula

Ac·tin'u·la noun plural [ New Latin , from Greek ..., ..., a ray.] (Zoology) A kind of embryo of certain hydroids ( Tubularia ), having a stellate form.
Found on http://www.encyclo.co.uk/webster/A/24
No exact match found