CAPSID is a playable word

capsid Scrabble® Dictionary

noun
pl. capsids
the outer shell of a virus particle
(adjective) capsidal
65 Playable Words can be made from "CAPSID"
   2-Letter Words (9 found)
   3-Letter Words (25 found)
   5-Letter Words (9 found)
   6-Letter Words (1 found)