/ Dictionary / Index D developing: Meaning and Definition of Find definitions for: de•vel•op•ing Pronunciation: (di-vel'u-ping), [key] — adj. undergoing development; growing; evolving. (of a nation or geographical area) having a standard of living or level of industrial production well below that possible with financial or technical aid; not yet highly industrialized. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: developing (Thesaurus) developer developing-out paper 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