exoskeleton

noun

exo·​skel·​e·​ton ˌek-sō-ˈske-lə-tən How to pronounce exoskeleton (audio)
1
: an external supportive covering of an animal (such as an arthropod)
2
: bony or horny parts of a vertebrate produced from epidermal tissues
3
: an artificial external supporting structure
exoskeletal adjective

Examples of exoskeleton 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.
These allergens can come from their saliva, shed exoskeletons and feces. Evan Moore, Charlotte Observer, 29 Apr. 2025 Insects belong to a phylum called Arthropoda – animals with hard exoskeletons and jointed feet. Nicholas Green, The Conversation, 24 Mar. 2025 Cicada nymphs and exoskeletons will litter the ground. Julia Jacobo, ABC News, 15 Mar. 2025 This positions exoskeletons as more than safety technology or personal protective equipment, creating a win-win scenario for employees and employers. Borislav "bobby" Marinov, Forbes, 12 Dec. 2024 See All Example Sentences for exoskeleton

Word History

First Known Use

1847, in the meaning defined at sense 1

Time Traveler
The first known use of exoskeleton was in 1847

Browse Nearby Words

Cite this Entry

“Exoskeleton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/exoskeleton. Accessed 17 May. 2025.

Kids Definition

exoskeleton

noun
exo·​skel·​e·​ton ˌek-sō-ˈskel-ət-ᵊn How to pronounce exoskeleton (audio)
: a hard supporting or protective structure (as of an insect, spider, or crustacean) on the outside of the body

Medical Definition

exoskeleton

noun
exo·​skel·​e·​ton ˌek-sō-ˈskel-ət-ᵊn How to pronounce exoskeleton (audio)
1
: an external supportive covering of an animal (as the system of sclerites covering the body of an insect) compare endoskeleton
2
: bony or horny parts (as nails, hooves, or scales) of a vertebrate produced from epidermal tissues
exoskeletal adjective

More from Merriam-Webster on exoskeleton

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!