CR3A Full Form. Full Meaning of CR3A Find long form and abbreviation, slang or definition of CR3A. What does CR3A mean? What does CR3A 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.