Hi vis overalls - High visibility overalls are used by workers on the roads, rails, and near cranes etc. Padded overalls - With padding material covering the inside for use in cold weather This definition was written in the context of Personal Protective Equipment (PPE)
Princeton's WordNet(0.00 / 0 votes)Rate this definition: conservation of mass, conservation of matter, law of conservation of mass, law of conservation of matter(noun) a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system. Chaldean Numerology.
It means that the total amount of mass (or energy) won't change. The Law of Conservation of Energy states: Energy cannot be created or destroyed but merely change from one foâ¦rm to another. Einstein showed that matter is a form of energy. When a nuclear decay occurs there is a minuscule loss of mass that is transformed into energy.