Radix
in algebra, the root of a finite expression from which a series is derived. In anatomy, the root or portion of anything inserted into another, as the root of a tooth. In botany, the root RADNORSHIRE of any plant. In pharmacy, the root of a medicinal plant, as Rhei radix=rhubarb root. In mathematics, any number which is arbitrarily made the fundamental number or base of any system. system. Thus 10 is the radix of the decimal system of numeration, and also in Briggs' or the common system of logarithms.