DYADIC is a playable word

dyadic Scrabble® Dictionary

noun
pl. dyadics
a sum of mathematical dyads
22 Playable Words can be made from "DYADIC"
   2-Letter Words (6 found)
   3-Letter Words (8 found)
   4-Letter Words (5 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)