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.
Cannot Be Created or Destroyed. The law of conservation of matter states that matter is not created nor destroyed in any chemical or physical change. however, this law doesn' â¦ t apply to nuclear reactions because some matter is turned into energy.30 people found this useful.he law of conservation of matter states that matter is not created nor destroyed in any chemical or physical change. however, this law doesn' â¦ t apply to nuclear reactions because some matter is turned into energy. 30 people found this useful.