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radical sign: Meaning and Definition of

rad'ical sign"

Pronunciation: [key]
— Math. Math.
  1. the symbol √ or &fullradicover; indicating extraction of a root of the quantity that follows it, as √25=5 or &radsigneq;.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
radical right radicand
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