/ Dictionary / Index P pneumonoconiosis: Meaning and Definition of Find definitions for: pneu•mo•no•co•ni•o•sis Pronunciation: (n"mu-nō-kō"nē-ō'sis, ny"-), [key] — n. Pathol. pneumoconiosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pneumonoconiosis (Thesaurus) pneumono- pneumonoultramicroscopicsilicovolcanoconiosis Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language