from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A divisor of a quantity that when squared gives the quantity. For example, the square roots of 25 are 5 and -5 because 5 × 5 = 25 and (-5) × (-5) = 25.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Of a number, another number which, when squared, yields the original number; sometimes constrained to be the positive number when two solutions exist.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a number that when multiplied by itself equals a given number
Sorry, no etymologies found.