: any of several large hares (genus Lepus) of western North America having very long ears and long hind legs
Origin of JACKRABBIT
(jackass) + rabbit;
from its long ears
First Known Use: 1863
jackrabbit noun (Concise Encyclopedia)
Any of several large, common North American species of hares (e.g., Lepus townsendii, L. californicus). Jackrabbits have very long ears and long hind legs. They are widespread, particularly in the West, but are found most often in prairie and plains environments.
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