keloid [ˈkiː.lɔɪd]noun 1verb 1forms 3 noun1 •A hard raised growth of scar tissue at the site of an injury.It gave her otherwise plain face a broken excitement and blue-blade threat like the keloid scar of the razored man who sometimes played checkers with her grandmother. — 1973 verb1 •To form a keloid.The scar on his neck from running through that plate glass on one of our licks has keloided smooth and shiny. — 2013 formskeloided · keloiding · keloids