1 definition found From The Collaborative International Dictionary of English v.0.44 [gcide]: Radix \Ra"dix\ (r[=a]"d[i^]ks), noun; pl. L. {Radices} (r[a^]d"[i^]*s[=e]z), E. {Radixes} (r[=a]"d[i^]ks*[e^]z). [L. radix, -icis, root. See {Radish}.] 1. (Philol.) A primitive word, from which spring other words; a radical; a root; an etymon. 2. (Math.) (a) A number or quantity which is arbitrarily made the fundamental number of any system; a base. Thus, 10 is the radix, or base, of the common system of logarithms, and also of the decimal system of numeration. (b) (Alg.) A finite expression, from which a series is derived. [R.] --Hutton. 3. (Bot.) The root of a plant.

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