/ Dictionary / Index R radicand: Meaning and Definition of Find definitions for: rad•i•cand Pronunciation: (rad'i-kand", rad"i-kand'), [key] ? n. Math. the quantity under a radical sign. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. radical sign radicant Related Content Daily Word Quiz: abscond Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language