perfect square

noun

, Mathematics.

1. a rational number that is equal to the square of another rational number.
2. a polynomial that is the square of another polynomial.

Word History and Origins

Origin of perfect square¹

First recorded in 1935–40

Example Sentences

First, the Low-Pro 3 folds in half to become a perfect square when it’s on my roof, saving me valuable rack space that I can use for vehicle recovery gear or Pelican storage boxes.

From Outside Online

Last week, you first saw that for some perfect squares, when you removed the last digit, you got another perfect square.

From FiveThirtyEight

For some perfect squares, when you remove the last digit, you get another perfect square.

From FiveThirtyEight

It is nearly a perfect square in shape, and each side of the square is a little over six miles long.

From Project Gutenberg

It measured not less than 120 feet by 110, forming nearly a perfect square.

From Project Gutenberg

This was a perfect square twenty cubits long and twenty broad.

From Project Gutenberg

The six windows on the ground floor are topped with round arches, and coming up the drive the house seems a perfect square.

From Project Gutenberg

The town forms an almost perfect square, and has clean and well-macadamized streets.

From Project Gutenberg