tube foot


Definition of tube foot

: one of the small flexible tubular processes of most echinoderms that are extensions of the water-vascular system and are used especially in locomotion and grasping

Examples of tube foot in a Sentence

Recent Examples on the Web

Some use tiny tube feet to crawl, while others, like Synapta, move in undulating, wavelike motions. Shaena Montanari, National Geographic, "Watch: Divers Stumble Across a Super-Long Sea Cucumber," 21 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tube foot.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of tube foot

1888, in the meaning defined above

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The first known use of tube foot was in 1888

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to spread over or through

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