/ Dictionary / Index O oblique motion: Meaning and Definition of Find definitions for: oblique' mo'tion Pronunciation: [key] — Music. Music. the relative motion of two melodic parts in which one remains in place or moves relatively little while the other moves more actively. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. obliquely oblique projection 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