Simple Definition of caterpillar

from our Learner's Dictionary

caterpillar

noun

ˈkætɚˌpɪlɚ

plural caterpillars

: a small creature that is like a worm with many legs and that changes to become a butterfly or moth

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“Caterpillar.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/caterpillar. Accessed 19 Jun. 2026.

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