Saber-toothed-tiger definitions

Any of various extinct cats, closely resembling the tiger, but with a more massive body, shorter legs and tail, and long, curved upper canine teeth: found from the Oligocene to the Pleistocene, and of wide distribution.
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Any of numerous species of prehistoric cat-like mammals (principally in subfamily Machairodontinae), characterized by massive, but short, legs and two large canine teeth, each about seven inches long and shaped like sabers.
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