UNIAXIAL is a playable word

uniaxial Scrabble® Dictionary

adjective
having one axis
48 Playable Words can be made from "UNIAXIAL"
   2-Letter Words (13 found)
   3-Letter Words (13 found)
   4-Letter Words (15 found)
   5-Letter Words (6 found)
   8-Letter Words (1 found)