Ma'anar ƙamus na "brownness" shine inganci ko yanayin launin ruwan kasa. Yana nufin halayyar launin ruwan kasa ko inuwar abu, abu, ko saman. “Brownness” kuma na iya kwatanta kamanni ko sifar wani abu mai launin ruwan kasa, kamar launin ruwan biredi da aka gasa ko launin ruwan fatar mutum. Gabaɗaya, “brownness” kalma ce ta bayyanawa da ake amfani da ita don nuna kasancewar launin ruwan kasa ko launin ruwan kasa.