millipede

noun

mil·​li·​pede ˈmi-lə-ˌpēd How to pronounce millipede (audio)
: any of a class (Diplopoda) of myriapod arthropods having usually a cylindrical segmented body covered with hard integument, two pairs of legs on most apparent segments, and unlike centipedes no poison fangs

Did you know?

The earth is home to about 10,000 species of millipedes. Though they have no poison fangs, many of them can, when threatened, emit a liquid or gas poisonous to their enemies. If their structure were true to their name, millipedes would have a thousand legs, but in fact they have far fewer. Even so, a millipede in motion is a sight to ponder: How can it possibly coordinate all those legs so that it doesn't trip over itself? Like some tiny conga line or bunny hop, it scuttles away to a rhythm only it can hear.

Examples of millipede in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Shibadong millipedes have only been found in caves, the study said. Aspen Pflughoeft, Miami Herald, 9 Oct. 2025 Centipedes Versus Millipedes Most people can’t tell the difference between a centipede and a millipede, another multi-legged creature that needs moisture to thrive. Arricca Elin Sansone, Southern Living, 24 Sep. 2025 The snail is two years old and the millipede is only a few months old. Patricia Marx, New Yorker, 8 Sep. 2025 Even the most dedicated seed-eating songbirds must eat insects and other arthropods, that many-legged group of creatures that includes spiders and millipedes, to produce eggs, to grow new feathers and to feed their young. Madeline Bodin, Smithsonian Magazine, 27 June 2025 See All Example Sentences for millipede

Word History

Etymology

Latin millepeda, a small crawling animal, from mille thousand + ped-, pes foot — more at foot

First Known Use

1601, in the meaning defined above

Time Traveler
The first known use of millipede was in 1601

Browse Nearby Words

Cite this Entry

“Millipede.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millipede. Accessed 17 Oct. 2025.

Kids Definition

millipede

noun
mil·​li·​pede ˈmil-ə-ˌpēd How to pronounce millipede (audio)
: any of a class of arthropods having a long segmented body with a hard covering, two pairs of legs on most segments, and unlike the related centipedes no poison fangs
Etymology

from Latin millepeda "a small crawling animal," literally "a thousand-footed animal," from mille "thousand" and ped-, pes "foot"

Medical Definition

millipede

noun
mil·​li·​pede ˈmil-ə-ˌpēd How to pronounce millipede (audio)
: any of a class (Diplopoda) of arthropods having usually a cylindrical segmented body, two pairs of legs on most segments, and including some forms that secrete toxic substances causing skin irritation but that unlike centipedes possess no poison fangs

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