the quantity under a radical sign.
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British Dictionary definitions for radicand
a number or quantity from which a root is to be extracted, usually preceded by a radical sign: 3 is the radicand of √3
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
Scientific definitions for radicand
The number or expression that is written under a radical sign, such as the 3 in √3.
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