Ra"dix (rā"dĭks), n.;
pl. L. Radices
(răd"ĭ*sēz), E. Radixes
(rā"dĭks*ĕz). [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.