/ Dictionary / Index C chronic obstructive pulmonary disease: Meaning and Definition of Find definitions for: chron'ic obstruc'tive pul'monary disease" Pronunciation: [key] — Pathol. Pathol. any of various lung diseases leading to poor pulmonary aeration, including emphysema and chronic bronchitis. Abbr.: COPD Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Chronicles chrono Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language