digitigrade
Concise Oxford English Dictionary © 2008 Oxford University Press:
digitigrade /ˈdɪdʒɪtɪˌgreɪd/
▶adjective Zoology (of a mammal) walking on its toes and not touching the ground with its heels, as a dog, cat, or rodent. Compare with plantigrade.
– origin C19: from L. digitus ‘finger, toe’ + -gradus ‘-walking’.
'digitigrade' also found in these Oxford entries:

