Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun actinia
2 senses of actinia
Sense 1
Actinia, genus Actinia -- (a genus of sea anemone common in rock pools)
=> coelenterate genus -- (a genus of coelenterates)
Sense 2
actinia, actinian, actiniarian -- (any sea anemone or related animal)
=> sea anemone, anemone -- (marine polyps that resemble flowers but have oral rings of tentacles; differ from corals in forming no hard skeleton)