fixing agent fixing • fixings · · · Info · Definitions · Synonyms · Characters · · fixing agent · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a chemical compound that sets or fixes something (as a dye or a photographic image). Synonyms: fixing agent, fixer. · · Noun Definition 1 Synonyms · · · fixer · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 n latin small letter n U+006E t latin small letter t U+0074 x latin small letter x U+0078