DIABASIC is a playable word

diabase Scrabble® Dictionary

noun
pl. diabases
an igneous rock
(adjective) diabasic
73 Playable Words can be made from "DIABASIC"
   2-Letter Words (11 found)
   3-Letter Words (24 found)
   5-Letter Words (9 found)
   7-Letter Words (3 found)
   8-Letter Words (1 found)