HYPOPYON is a playable word

hypopyon Scrabble® Dictionary

noun
pl. hypopyons
an accumulation of pus in the eye
36 Playable Words can be made from "HYPOPYON"
   2-Letter Words (8 found)
   3-Letter Words (15 found)
   4-Letter Words (8 found)
   5-Letter Words (4 found)
   8-Letter Words (1 found)