cu·​boid | \ ˈkyü-ˌbȯid How to pronounce cuboid (audio) \

Definition of cuboid

 (Entry 1 of 2)

1 : approximately cubical in shape
2 : relating to or being the cuboid



Definition of cuboid (Entry 2 of 2)

: the outermost bone in the distal row of tarsal bones of many higher vertebrates

Examples of cuboid in a Sentence

Recent Examples on the Web: Adjective The length and shape of the Dikika child’s cuboid bone—the one responsible for making our mid-foot rigid and providing support for the arch of the foot—suggests that A. afarensis had a stiffer mid-foot than apes. Kiona N. Smith, Ars Technica, "The road to bipedalism wasn’t straight and narrow," 15 Aug. 2018 Their systems of choice are small cuboid satellites that are loaded with electronics, imaging and guidance systems, and even their own thrusters for applications that often involve imaging and mapping. Kate Greene, Slate Magazine, "Why India Is Investing in Space," 17 Mar. 2017 Recent Examples on the Web: Noun The interior of the flats was revealed, each a tiny different colored cuboid. Sam Rigby, Quartz, "The Scottish city trying to make urban living less miserable," 2 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cuboid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cuboid


circa 1828, in the meaning defined at sense 1


1839, in the meaning defined above

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Time Traveler for cuboid

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The first known use of cuboid was circa 1828

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Cite this Entry

“Cuboid.” Dictionary, Merriam-Webster, Accessed 11 Jul. 2020.

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More Definitions for cuboid


cu·​boid | \ ˈkyü-ˌbȯid How to pronounce cuboid (audio) \

Medical Definition of cuboid

 (Entry 1 of 2)

1 : relating to or being the cuboid the cuboid bone
2 : shaped approximately like a cube



Medical Definition of cuboid (Entry 2 of 2)

: the outermost bone in the distal row of tarsal bones of the foot that supports the fourth and fifth metatarsals

More from Merriam-Webster on cuboid

Thesaurus: All synonyms and antonyms for cuboid

Rhyming Dictionary: Words that rhyme with cuboid

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