sea anemone


sea anemone

noun

: a small, brightly colored sea animal that looks like a flower and sticks to rocks, coral, etc.

Full Definition of SEA ANEMONE

:  any of numerous usually solitary anthozoan polyps (order Actiniaria) whose form, bright and varied colors, and cluster of tentacles superficially resemble a flower

First Known Use of SEA ANEMONE

1742

sea anemone

noun    (Concise Encyclopedia)

Sea anemone, Tealia—(Top) M. Woodbridge Williams; (bottom) George Lower—The National Audubon Society Collection/Photo Researchers

Any of more than 1,000 cnidarian species in the order Actiniaria, found from the tidal zone of all oceans to depths of more than 30,000 ft (10,000 m) and occasionally in brackish water. Species vary from less than 1 in. (3 cm) to about 5 ft (1.5 m) in diameter. The mouth, at the upper end of the cylindrical body, is surrounded by petal-like, usually colourful tentacles that bear stinging nematocysts for paralyzing prey such as fishes. Some species eat only microorganisms. Most species remain permanently attached to a hard surface such as a rock or the back of a crab.

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