gas mask gasmask • gas meter · · · Info · Definitions · Synonyms · Characters · · gas mask · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) a protective mask with a filter; protects the face and lungs against poisonous gases. Synonyms: gasmask, respirator, gas helmet. · · Noun Definition 1 Synonyms · · · gasmask · · Synonym 1 respirator · · Synonym 2 gas helmet · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 g latin small letter g U+0067 k latin small letter k U+006B m latin small letter m U+006D s latin small letter s U+0073