third dimension


Definition of third dimension 

1 : thickness, depth also : a dimension that adds the effect of solidity to a two-dimensional system

2 : a quality that confers reality or lifelikeness night sounds that stick in the mind and give a third dimension to the memory— Adie Suehsdorf

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Other Words from third dimension

third-dimensional \ˈthərd- də-ˈmench-nəl, -ˈmen(t)-shə-nᵊl \ adjective

Examples of third dimension in a Sentence

Recent Examples on the Web

Well before any of this, Abbott’s readers will have guessed that they’re headed toward a fateful meeting between A Square and an interloper from Spaceland, the third dimension. John J. Miller, WSJ, "A Multidimensional Religious Story," 8 June 2018 To do that, scientists had to bring the cells into the third dimension. Megan Molteni, WIRED, "These Beating Mini-Hearts Could Save Big Bucks—And Maybe Lives," 27 June 2018 Now, using the Doppler effect to add a third dimension to their data, astronomers have measured the speed of the moving plasma, as well as its direction, temperature and density. Doyle Rice, USA TODAY, "Giant solar 'tornadoes' — some bigger than the Earth — don't spin after all," 6 Apr. 2018 Keep peering at your screen, reading and staring, snubbing life’s third dimension and natural hues. Susan Crawford, WIRED, "What Are Screens Doing to Our Eyes—And Our Ability to See?," 27 Mar. 2018 Seeking new manufacturing technologies to enable smaller, denser features on semiconductors, chipmakers use Lam tools to etch more complex patterns onto computer chips and add a third dimension to memory chips. Mike Rogoway,, "Lam Research plays long game, nurturing innovation at Tualatin site that employs thousands," 20 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'third dimension.' 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 third dimension

1846, in the meaning defined at sense 1

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Last Updated

11 Oct 2018

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The first known use of third dimension was in 1846

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a state of commotion or excitement

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