tube foot

noun

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

Recent Examples of tube foot from the Web

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


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