MUCIN is a playable word

mucin Scrabble® Dictionary

noun
pl. mucins
a protein secreted by the mucous membranes
(adjective) mucinoid, mucinous
15 Playable Words can be made from "MUCIN"
   2-Letter Words (6 found)
   3-Letter Words (5 found)
   4-Letter Words (2 found)
   5-Letter Words (2 found)