radical | the math symbol , used to denote the process of taking a root of a quantity |
radical expression | a quantity that contains a term with a radical, as in |
root | any number x multiplied by itself a specific number of times to produce another number, such that in xn = y, x is the nth root of y – for example, because 23 = 8, 2 is the 3rd (or cube) root of 8 |