ULCER is a playable word

ulcer Scrabble® Dictionary

verb
ulcered, ulcering, ulcers
to affect with an ulcer (a type of lesion)
21 Playable Words can be made from "ULCER"
   2-Letter Words (3 found)
   3-Letter Words (8 found)
   4-Letter Words (7 found)
   5-Letter Words (3 found)