overhead [overheads](data or steps of computation used only to facilitate computation) noun [UK: ˌəʊv.ə.ˈhed] [US: ˌoʊv.ə.ˈhed]
overheadprosjektør noun {m}
overhead projector(projector that projects an image over the heads of the viewers onto a screen) noun [UK: ˌəʊv.ə.ˈhed prə.ˈdʒek.tə(r)] [US: ˌoʊv.ə.ˈhed prə.ˈdʒek.tər]