am·bu·la·cral adjective \ˌam-byə-ˈla-krəl, -ˈlā-\
: of, relating to, or being any of the radial areas of echinoderms along which run the principal nerves, blood vessels, and elements of the water-vascular system <ambulacral grooves>
First Known Use of AMBULACRAL
Seen & Heard
What made you want to look up ambulacral? Please tell us where you read or heard it (including the quote, if possible).