Meaning of CATERPILLAR in English

CATERPILLAR

Caterpillar BrE AmE ( also ˈCaterpillar ˌtrack ) noun [countable] trademark

a metal belt made of short connected pieces that is fastened over the wheels of a heavy vehicle to help it to move over soft ground:

a Caterpillar tractor (=a vehicle fitted with this belt)

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.