digitigrade definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
walking on the toes with the heels not touching the ground, as cats, dogs, or horses
Origin: Fr: see digiti- and amp; -grade
any animal that walks in this manner
digitigrade definition by American Heritage Dictionary
Relating to an animal, such as a horse, cat, or dog, whose weight is borne on the toes.
Origin: French : Latin digitus, toe; see digit + Latin gradus, step; see grade.