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Definition of: mastiff
(mas′tif, mäs′-) noun
One of an old English breed of large hunting dogs, with a thick–set, heavy body, straight forelegs, a broad skull, drooping ears, and pendulous lips. [<OF mastin <L mansuetus gentle <pp. of mansuescere tame <manus hand; infl. in form by OF mestif mongrel]
(About 30 inches high at the shoulder)
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