perfect square

noun

: an integer (such as 9 or 36) whose square root is an integer

Examples of perfect square in a Sentence

Recent Examples on the Web
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.
Next, those perfect squares come from consecutive numbers — three, four, and five. — Ari Daniel, NPR, 16 Sep. 2025 Melted over the mixture are two perfect squares of American cheese, a shower of sesame seeds, and the aforementioned reddish-pink burger sauce. — Alana Al-Hatlani, Southern Living, 25 Oct. 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

Word History

First Known Use

1811, in the meaning defined above

Time Traveler
The first known use of perfect square was in 1811

Rhymes for perfect square

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Browse Nearby Words

perfect score
perfect square
perfect storm
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Cite this Entry

“Perfect square.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perfect%20square. Accessed 7 Jul. 2026.

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Kids Definition

perfect square

noun
: a whole number whose square root is a whole number
9 is a perfect square
Last Updated: - Updated example sentences
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