third dimension

American  

noun

1. the additional dimension by which a solid object is distinguished from a planar projection of itself or from any planar object.

2. something that heightens the reality, vividness, or significance of a factual account, sequence of happenings, etc..

   The illustrations added a third dimension to the story.

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third dimension British  

noun

1. the additional dimension by which a solid object may be distinguished from a two-dimensional drawing or picture of it or from any planar object

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Etymology

Origin of third dimension

First recorded in 1855–60

Example Sentences

But, like others, the researchers found that the electrons could escape up and out of the lattice, through the third dimension.

From Science Daily • Nov. 8, 2023

"There is this third dimension of space which offers so much more exciting information and perspective that we tend to ignore."

From Salon • Dec. 25, 2022

Culture and sport, I think it is safe to say, have been joined by a third dimension when it comes to the defining characteristics of Welsh identity.

From BBC • Oct. 17, 2022

And the third dimension is that her body itself is shouting at her and saying, ‘Pay attention to me.’

From Los Angeles Times • May 17, 2022

“How are you?” asks the visitor from the third dimension.

From "Cosmos" by Carl Sagan