sea anemone

noun

any sedentary marine animal of the phylum Coelenterata, having a columnar body and one or more circles of tentacles surrounding the mouth.

Origin

1735-45

Examples from the web for sea anemone

sea anemone with tentacles extended for nighttime feeding.

British Dictionary definitions for sea anemone

sea anemone

noun

any of various anthozoan coelenterates, esp of the order Actiniaria, having a polypoid body with oral rings of tentacles See also actinia

sea anemone in Science

sea anemone
Any of numerous, often brightly colored cnidarians of the class Anthozoa, having flexible cylindrical bodies with tentacles surrounding a central mouth. Sea anemones are related to jellyfish and corals, but have no free-swimming (medusoid) stage, and resemble flowers.