xeroderma pigmentosum: Meaning and Definition of

xeroder'ma pig•men•to'sum

Pronunciation: (pig"mun-tō'sum), [key]
— Pathol. Pathol.
  1. a rare inherited disease characterized by sensitivity to ultraviolet light, exposure resulting in lesions and tumors of the skin and eyes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.