STRATAL is a playable word

stratal Scrabble® Dictionary

adjective
pertaining to a stratum
65 Playable Words can be made from "STRATAL"
   2-Letter Words (7 found)
   3-Letter Words (19 found)
   4-Letter Words (18 found)
   5-Letter Words (11 found)
   6-Letter Words (9 found)
   7-Letter Words (1 found)