phosgene phose • phosgenic · · · Info · Definitions · Characters · · phosgene · · Text Latin · · Script 8 · · Length 2 · · Syllables Definitions · · · (noun) a colorless poisonous gas that smells like new-mown hay; used in chemical warfare. · · Noun Definition 1 Characters · · e latin small letter e U+0065 g latin small letter g U+0067 h latin small letter h U+0068 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073