PTOSIS is a playable word

ptosis Scrabble® Dictionary

noun
pl. ptoses
a drooping of the upper eyelid
(adjective) ptotic
58 Playable Words can be made from "PTOSIS"
   2-Letter Words (11 found)
   3-Letter Words (19 found)
   4-Letter Words (19 found)
   5-Letter Words (7 found)
   6-Letter Words (2 found)