laboratory(A room or building with scientific equipment for doing scientific tests or for teaching science, or a place where chemicals or medicines are produced)
lacquer(A material which contains a substantial quantity of a cellulose derivative, most commonly nitrocellulose but sometimes a cellulose ester, such as cellulose acetate or cellulose butyrate, or a cellulose ether such as ethyl cellulose; used to give a glossy finish, especially on brass and other bright metals)