sb. and a. Obs. a. sb.: see THOROUGH-LIGHT. b. adj. That lets light through; transparent. So Through-lighted: see THOROUGH-LIGHTED.
1601. Donne, Progr. Soul, Epist. If any coulors can deliver a minde so plaine and flatt and through light as mine. Ibid. (1612), Funeral Elegy, 61 Twas but a through-light scarfe, her mind tenroule.