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inchworm

American  
[inch-wurm] / ˈɪntʃˌwɜrm /

noun

  1. a caterpillar that moves along by bringing the rear end of its body forward and then advancing the front end, a motion known as looping; the larva of any geometrid moth.


inchworm British  
/ ˈɪntʃˌwɜːm /

noun

  1. another name for a measuring worm

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of inchworm

First recorded in 1860–65; inch 1 + worm


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

An army’s progress across country is compared to “the movement of an inchworm, which stretches forward to a spot, then waits while the rest of its body catches up.”

From The Wall Street Journal ● Feb. 11, 2026

This should make it possible for it to, for example, wander across a surface -- similar to an inchworm that pulls itself along a branch in its own characteristic style.

From Science Daily ● Oct. 19, 2023

And only a psychopath would raise a shoe to an inchworm, ladybug or other plausible picture-book protagonist.

From Washington Post ● Aug. 23, 2022

The baby huffed and squirmed along her torso with the blind doggedness of an inchworm until their faces were pressed together.

From New York Times ● May 9, 2018

It advanced like an inchworm, hunching up in the middle.

From "The Son of Neptune" by Rick Riordan

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