/ Dictionary / Index C conservation law: Meaning and Definition of Find definitions for: conserva'tion law" Pronunciation: [key] — Physics, Chem. Physics,Chem. any law stating that some quantity or property remains constant during and after an interaction or process, as conservation of charge or conservation of linear momentum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. conservationist conservation of angular momentum Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language