fourth dimension
noun
1
: a dimension in addition to length, breadth, and depth
specifically
: a coordinate in addition to three rectangular coordinates especially when interpreted as the time coordinate in a space-time continuum
2
: something outside the range of ordinary experience
fourth-dimensional
adjective
Examples of fourth dimension in a Sentence
Recent Examples on the Web
The fourth dimension coaster features seats that rotate 360 degrees forward and backward as the ride reaches a top speed of 76 mph over a track layout with multiple inversions.
—
Brady MacDonald, Orange County Register, 19 Mar. 2025
The Well This is what the fourth dimension looks like
Left–Right, Back–Forth, Up–Down.
—Big Think, 24 June 2024
Greene offers up a garden hose as a good example of what the fourth dimension looks like.
—Tim Newcomb, Popular Mechanics, 30 Jan. 2023
This doesn't mean that five connected neurons occupy some mysterious fourth dimension.
—Neuroskeptic, Discover Magazine, 18 July 2017
See All Example Sentences for fourth dimension
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Brady MacDonald, Orange County Register, 19 Mar. 2025
The Well This is what the fourth dimension looks like
Left–Right, Back–Forth, Up–Down.
—Big Think, 24 June 2024
Greene offers up a garden hose as a good example of what the fourth dimension looks like.
—Tim Newcomb, Popular Mechanics, 30 Jan. 2023
This doesn't mean that five connected neurons occupy some mysterious fourth dimension.
—Neuroskeptic, Discover Magazine, 18 July 2017
See All Example Sentences for fourth dimension
Cite this Entry
“Fourth dimension.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fourth%20dimension. Accessed 1 Apr. 2025.
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