n.1 a large reptile of the crocodile family native to S. America and China, with upper teeth that lie outside the lower teeth and a head broader and shorter than that of the crocodile.
2 (in general use) any of several large members of the crocodile family.
3 a the skin of such an animal or material resembling it. b (in pl.) shoes of this.
Phrases and idioms:
alligator clip a clip with teeth for gripping. alligator pear an avocado. alligator tortoise a large freshwater snapping turtle.
Etymology: Sp. el lagarto the lizard f. L lacerta