/ Dictionary / Index X xeroderma: Meaning and Definition of Find definitions for: xe•ro•der•ma Pronunciation: (zēr"u-dûr'mu), [key] — n. Pathol. a disease in which the skin becomes dry, hard, and scaly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: xeroderma (Thesaurus) xero- xeroderma pigmentosum Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language