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