CASEIC is a playable word

casein Scrabble® Dictionary

noun
pl. caseins
a milk protein
(adjective) caseic
24 Playable Words can be made from "CASEIC"
   2-Letter Words (6 found)
   3-Letter Words (10 found)
   4-Letter Words (6 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)