ACTINIA

actinia, actinian, actiniarian

(noun) any sea anemone or related animal

Actinia, genus Actinia

(noun) a genus of sea anemone common in rock pools

Source: WordNet® 3.1

Etymology

From the genus name.

Noun

actinia (plural actinias or actiniae)

a sea anemone, a member of the genus Actinia.

Source: Wiktionary

Ac*tin"i*a, n.; pl. L. Actiniæ, E. Actinias. Etym: [Latinized fr. Gr. (Zoöl.) (a) An animal of the class Anthozoa, and family Actinidæ. From a resemblance to flowers in form and color, they are often called animal flowers and sea anemones. [See Polyp.]. (b) A genus in the family Actinidæ.

Source: Webster’s Unabridged Dictionary 1913 Edition