1. (n.) A root; a point of origin; a base; as in base ten numbers\.

2. (n.) 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.

3. (n.) A finite expression, from which a series is derived.

4. (n.) The root of a plant.

beginning bulb bulbil commencement conception corm derivation genesis grass roots head inception origin original origination provenience radical radicle rhizome rise root rootstock source stem stock tap taproot tuber tubercle