Meaning of CATERPILLAR in English

CATERPILLAR

[cat.er.pil.lar] n, often attrib [ME catyrpel, fr. ONF catepelose, lit., hairy cat] (15c): the elongated wormlike larva of a butterfly or moth; also: any of various similar larvae Caterpillar trademark--used for a tractor made for use on rough or soft ground and moved on two endless metal belts

Merriam-Webster English vocab.      Английский словарь Merriam Webster.