/ Dictionary / Index N Newtonian mechanics: Meaning and Definition of Find definitions for: Newto'nian mechan'ics. Pronunciation: [key] — Physics. Physics. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Newtonian fluid Newtonian telescope Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language