A very small Asian or African deer, no bigger than a large rabbit, with small tusks and short legs.
From French chevrotain, diminutive of chevreuil (roe deer), from Latin capreolus; the -ain ending emphasizes its small size.
Chevrotains are so tiny that they're often called 'mouse deer,' and they're one of the oldest surviving deer species—they've barely changed in 35 million years because small size works so well.
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