NONHEME is a playable word

nonheme Scrabble® Dictionary

adjective
not containing iron that is bound like that of heme
43 Playable Words can be made from "NONHEME"
   2-Letter Words (14 found)
   3-Letter Words (17 found)
   4-Letter Words (10 found)
   5-Letter Words (1 found)
   7-Letter Words (1 found)