actiniarian
/akˌtɪniˈɛːrɪən/Zoology
noun
A cnidarian of the order Actiniaria; a sea anemone.
adjective
Belonging to or characteristic of the cnidarian order Actiniaria, comprising the sea anemones.
Origin
Late 19th century; earliest use found in Annals and Magazine of Natural History. From scientific Latin Actiniaria, order name + -an.