/ Dictionary / Index O obtrusion: Meaning and Definition of Find definitions for: ob•tru•sion Pronunciation: (ub-tr'zhun), [key] — n. the act of obtruding. something obtruded. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. obtrude obtrusive Related Content Daily Word Quiz: benevolent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language