| one of numerous small, tubular processes on the ventral body surface of most echinoderms, used for locomotion and grasping. |
| tube foot n. 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. |
| tube foot
One of the numerous external, fluid-filled muscular tubes of echinoderms, such as the starfish or sea urchin, used for locomotion, respiration, and grasping food or prey. |