/ Dictionary / Index P pemphigus: Meaning and Definition of Find definitions for: pem•phi•gus Pronunciation: (pem'fi-gus, pem-fī'-), [key] — n. Pathol. any of several diseases, often fatal, characterized by blisters on the skin and mucous membranes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pemphigus (Thesaurus) pemoline pen Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language