First Peek Ever Inside America's Most Successful Movie Theater. It's in NYC (of course), but the other reasons for its success aren't so obvious: there are no special tricks (gourmet meals aren't here), lots of unusual choices (art films!), and a commando-like operation.
Wiktionary(5.00 / 1 vote)Rate this definition: 1  conservation(Noun) The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation. 2  conservation(Noun) A wise use of natural resources.
conservation law n. Any of various principles, such as the conservation of charge and the conservation of energy, directly related to principles of symmetry and requiring some measurable property of a closed system to remain constant as the system changes.