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
Marclay’s deconstruction and reconstruction of time does not reduce to a coherent theory of the fourth dimension.
—
Jonathon Keats, Forbes.com, 28 Mar. 2025
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
See All Example Sentences for fourth dimension
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jonathon Keats, Forbes.com, 28 Mar. 2025
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
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 22 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share