/ Dictionary / Index O Occam's razor: Meaning and Definition of Find definitions for: Oc'cam's ra'zor Pronunciation: [key] the maxim that assumptions introduced to explain a thing must not be multiplied beyond necessity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Occam occas. Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language