adjective
- of or relating to an ambulacrum; pertaining to the radial grooves or tube-foot systems in echinoderms such as starfish and sea urchins
Usage: technical; biology
Examples
- The starfish uses its ambulacral grooves to move across the ocean floor.
- Ambulacral plates form the skeletal structure along the arms of sea stars.
- The ambulacral system allows echinoderms to extend and retract their tube feet.
- Scientists examined the ambulacral regions of the sea urchin under the microscope.
- Each ambulacral groove contains hundreds of tiny tube feet used for locomotion.