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tube foot

The definition of a tube foot is a fleshy tube that extends from the body of hard, spiny skeleton marine animals, used for movement, breathing and catching food.

(noun)

An example of a tube foot is one of the five appendages of a starfish.

See tube foot in Webster's New World College Dictionary

any of numerous small, water-filled, fleshy tubes in most echinoderms, projecting outside the body, often ending in a suction disc, and used in locomotion, securing food, etc.

See tube foot in American Heritage Dictionary 4

noun

One of the numerous external, fluid-filled muscular tubes of echinoderms, such as the starfish or sea urchin, serving as organs of locomotion, food handling, and respiration.

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