"digitigrade" in the noun sense
1. digitigrade mammal, digitigrade
an animal that walks so that only the toes touch the ground as e.g. dogs and cats and horses
"digitigrade" in the adjective sense
1. digitigrade
of mammals) walking on the toes with the posterior part of the foot raised (as cats, dogs, and horses do)
Source: WordNet® (An amazing lexical database of English)
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