keloid

n. excessive growth of scar tissue (Pathology)

A keloid is a type of scar which results in an overgrowth of tissue at the site of a healed skin injury. Keloids are firm, rubbery lesions or shiny, fibrous nodules and can vary from pink to flesh-colored or red to dark brown in color. A keloid scar is benign, non-contagious and usually accompanied by severe itchiness, sharp pains and changes in texture. In severe cases, it can affect movement of skin. Keloids should not be confused with hypertrophic scars, which are raised scars that do not grow beyond the boundaries of the original wound and may reduce over time.
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Keloid /ke·loid/ a sharply elevated, irregularly shaped, progressively enlarging scar due to excessive collagen formation in the dermis during [more]Keloid - Community and Resources

Noun
1. raised pinkish scar tissue at the site of an injury; results from excessive tissue repair
(synonym) cheloid
(hypernym) scar, cicatrix, cicatrice

(n.)
A keloid tumor.
  

(a.)
Applied to a variety of tumor forming hard, flat, irregular excrescences upon the skin.