special relativity

noun

Examples of special relativity in a Sentence

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This cosmic expansion doesn’t actually consist of anything exceeding the speed of light, as the limits of special relativity (which limit speeds to a limit of the speed of light) are confined to two objects passing each other at the same location in space. Big Think, 31 Mar. 2026 The answer once again comes from special relativity, which says that the faster an object moves, the slower time passes for it (at least relative to an outside observer). Encyclopedia Britannica, 23 Mar. 2026 In the 1920s, physicist Paul Dirac was trying to force two very different worlds — quantum mechanics (the rules of the very small) and special relativity (the rules of the very fast) — to play together. Paul Sutter, Space.com, 18 Jan. 2026 But that metaphysics was enough to lead to new science, as special relativity gave way to general relativity, a new theory of gravity, complete with new, testable predictions. Quanta Magazine, 30 July 2024 See All Example Sentences for special relativity

Word History

First Known Use

1919, in the meaning defined above

Time Traveler
The first known use of special relativity was in 1919

Cite this Entry

“Special relativity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/special%20relativity. Accessed 4 Apr. 2026.

Kids Definition

special relativity

noun

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