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.
In physics, the term conservation refers to something which doesn't change. There are many conserved quantities in physics. If you have looked at examples in other articlesâfor example, the kinetic energy of charging elephantsâthen it may surprise you that energy is a conserved quantity.