FGCS Full Form. Full Meaning of FGCS Find long form and abbreviation, slang or definition of FGCS. What does FGCS mean? What does FGCS 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.