an integer, such as 1, 4, 9, or 16, that is the square of an integer
square number in American English
noun
a number that is the square of another integer, as 1 of 1, 4 of 2, 9 of 3, etc
Word origin
[1550–60]This word is first recorded in the period 1550–60. Other words that entered Englishat around the same time include: collate, haul, modulate, scanner, urge
Examples of 'square number' in a sentence
square number
The winning team at a seven-a-side football tournament was awarded a four-figure perfect square number of silver pennies.
Times, Sunday Times (2009)
Square numbers and cube numbers have a sizeable fan base.
Times, Sunday Times (2011)
Learn the square numbers up to 100.
The Sun (2011)
The trick is to try to capture the number as the difference of two square numbers.