passive source passive resister • passive transport · · · Info · Definitions · Characters · · passive source · · Text Common · · Latin · · Scripts 14 · · Length 3 · · Syllables Definitions · · · (noun) an informant who is not assigned to obtain specific intelligence but who routinely passes on whatever information he or she has. Synonyms: passive source. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076