radical sign


nounMathematics.
  1. the symbol √ or  indicating extraction of a root of the quantity that follows it, as √25=5 or .

Origin of radical sign

1
First recorded in 1660–70

Words Nearby radical sign

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How to use radical sign in a sentence

British Dictionary definitions for radical sign

radical sign

noun
  1. the symbol √ placed before a number or quantity to indicate the extraction of a root, esp a square root. The value of a higher root is indicated by a raised digit in front of the symbol, as in ³√

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