Is “Radix” a Scrabble word?
Yes
RADIX
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Radix
/ɹeɪ.dɪks/
noun
1.A root.
2.A primitive word, from which other words may be derived.
3.The number of distinct symbols used to represent numbers in a particular base, as ten for decimal.
Synonyms: primitive, radical