a. [ Also spelled cheloid. ] [ F. kéloïde, from Gr. chhlh` crab's claw + -oid: cf. F. kéloïde, chéloïde. ] (Med.) Applied to a variety of tumor forming hard, flat, irregular excrescences upon the skin, or to keloid scar tissue. [ Webster 1913 Suppl. ]

n. [ Also spelled cheloid. ] 1. A keloid tumor. [ Webster 1913 Suppl. ]

2. An abnormally large scar tissue growing at the site of a cut or surgical incision. [ PJC ]