HYOIDEAN is a playable word

hyoid Scrabble® Dictionary

noun
pl. hyoids
a bone of the tongue
(adjective) hyoidal, hyoidean
139 Playable Words can be made from "HYOIDEAN"
   2-Letter Words (30 found)
   5-Letter Words (11 found)
   6-Letter Words (4 found)
   7-Letter Words (1 found)
   8-Letter Words (1 found)