third dimension

noun
|Updated on: 19 Jul 2018

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

third-dimensional

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

Recent Examples of third dimension from the Web

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.

First Known Use of third dimension

1846

in the meaning defined at sense 1

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