actinian

[ak-tin-ee-uh n]

adjective

belonging or pertaining to the order or suborder Actiniaria, comprising the sea anemones.

noun

any sea anemone.

Origin of actinian

1885–90; < New Latin Actini(a) actinia + -an

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for actinian

Historical Examples of actinian

Moreover, there are some modern corals in which the secondary cycle of mesenteries departs from the Actinian plan.
Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2
Various