alligator

noun

al·​li·​ga·​tor ˈa-lə-ˌgā-tər 

1

: either of two large carnivorous, thick-skinned, long-bodied, aquatic, crocodilian reptiles (Alligator mississippiensis of the southeastern U.S. and A. sinensis of China) that have a broad head with a slightly tapered, long, rounded, U-shaped snout and a special pocket in the upper jaw for reception of the enlarged lower fourth tooth

broadly : crocodilian

2

: leather made from alligator hide

Illustration of alligator

• alligator 1

Examples of alligator in a Sentence

Recent Examples on the Web

The alligator that became a sensation in Chicago after turning up in a Humboldt Park lagoon last month is healthy and enjoying the good life in sunny Florida, keepers at his new home said. — Kori Rumore, Chicago Tribune, 9 July 2026

Millions of years ago, the peaceful water, lack of scavengers, and fine sediment created perfect conditions for preserving these plentiful prehistoric fossils—fish, alligators, stingrays, turtles, and even small horses have been found here. — Condé Nast Traveler, 7 July 2026

Weber also noted that mating season is coming to an end, when alligators become very territorial. — Andrea Flores, Los Angeles Times, 6 July 2026

Family and loved ones are remembering Brittany Clark, the former Sacramento resident and Kennedy High School student killed by an alligator in a Florida river, as officials there released new details of the gruesome attack. — Darrell Smith, Sacbee.com, 6 July 2026

Word History

Etymology

Spanish el lagarto the lizard, from el the (from Latin ille that) + lagarto lizard, from Vulgar Latin *lacartus, from Latin lacertus, lacerta — more at lizard

First Known Use

1591, in the meaning defined at sense 1

Phrases Containing alligator

• alligator clip
• alligator pear
• alligator snapper
• alligator snapping turtle

Rhymes for alligator

• activator
• actuator
• agitator
• allocator
• alternator
• animator
• annotator
• applicator
• arbitrator
• aspirator
• aviator
• calculator

Kids Definition

alligator

noun

al·​li·​ga·​tor ˈal-ə-ˌgāt-ər 

1

: either of two large short-legged reptiles resembling crocodiles but having a shorter and broader snout

2

: leather made from alligator's hide

Etymology

from Spanish el lagarto "the lizard"