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 Any chip is going to be approximately cuboid-shaped—again, see that Facebook pic—and would have to be small enough to pass through the needle. James Heathers, The Atlantic, 3 June 2021 Yet Pattison’s reporting and prose bring the readers into the excitement of scenes that turn on these details, such as when White and his colleagues realize that all human species, new and old, seem to have a facet in their cuboid foot bone. Stephanie Hanes, The Christian Science Monitor, 8 Dec. 2020 Working with János Török, a specialist in computer simulations, and Ferenc Kun, an expert on fragmentation physics, Domokos found that cuboid averages showed up in rock types like gypsum and limestone as well. Quanta Magazine, 19 Nov. 2020 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, 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, 17 Mar. 2017 Recent Examples on the Web: Noun The new satellite is a 2.5-meter-long metallic cuboid weighing 640 kilograms. Sofia Moutinho, Science | AAAS, 26 Feb. 2021 This cuboid has an equal length and width of 6-inches (15cm) and stands 11.625-inches (29.5cm) high. Sam Machkovech, Ars Technica, 28 Sep. 2020 The interior of the flats was revealed, each a tiny different colored cuboid. Sam Rigby, Quartz, 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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Last Updated

10 Jun 2021

Cite this Entry

“Cuboid.” Dictionary, Merriam-Webster, Accessed 14 Jun. 2021.

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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

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