Phōs'gene, a.

(Fŏs'jēn), a. [Fr. phosgène, from Gr. φῶς, light, and γεννάω, to produce.] (Chem.) Generating light;—said of a certain gas generated by the action of sunlight or bright daylight on chlorine and carbonic acid, and composed of one equivalent of carbon, one of oxygen, and one of chlorine.