RSMSC Full Form. Full Meaning of RSMSC Find long form and abbreviation, slang or definition of RSMSC. What does RSMSC mean? What does RSMSC stand for? We are providing world largest and most comprehensive acronyms, names, abbreviations database directory on the Internet. Our data base contains more than 8,00,000 terms abbreviations and acronyms. You can also search unique terms more than 4,00,000 general Comprehensive words.