: an integer (such as 9 or 36) whose square root is an integer
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Today is extra special because the year also happens to be a perfect square.—Ari Daniel, NPR, 5 May 2025 The crows might see, for example, five perfect squares along with one four-sided figure that was just slightly off.—Nell Greenfieldboyce, NPR, 12 Apr. 2025 The equation no longer corresponds to a Turing machine that computes perfect squares—and, more generally, the Diophantine equations can no longer encode the halting problem.—Joseph Howlett, WIRED, 9 Mar. 2025 The equation no longer corresponds to a Turing machine that computes perfect squares — and, more generally, the Diophantine equations can no longer encode the halting problem.—Joseph Howlett, Quanta Magazine, 3 Feb. 2025 See All Example Sentences for perfect square
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