Definition of perfect square in English:

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perfect square

noun

1The product of a rational number multiplied by itself.
Example sentences
  • If we restrict ourselves to the 2x2 arrays whose diagonals lie on the main diagonal of the table, then the sum of four numbers in the array is always a perfect square.
  • When we add the first three odd numbers, one, three and five, we get nine, another perfect square, the square of three.
  • If this is the same as the original whole number then the original was a perfect square.
1.1The product of a polynomial multiplied by itself.

For editors and proofreaders

Syllabification: per·fect square

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