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square number

American

noun

a number that is the square of another integer, as 1 of 1, 4 of 2, 9 of 3, etc.

square number British

noun

an integer, such as 1, 4, 9, or 16, that is the square of an integer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of square number

First recorded in 1550–60

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023