synovial fluid synovial • synovial joint · · · Info · Definitions · Synonyms · Characters · · synovial fluid · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.. Synonyms: synovia, synovial fluid. · · Noun Definition 1 Synonyms · · · synovia · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076 y latin small letter y U+0079