radix

In mathematics and computer science, this term is used as a technical synonym for base. It describes the number of unique digits, including zero, used to represent numbers in a positional numeral system. While base is more common in general conversation, radix is the preferred term in formal algorithmic and computational contexts.

In botany, the term refers specifically to the primary root system. It is a specialized anatomical term used in plant morphology to distinguish the main root axis from lateral roots or secondary growth.