OPR means Opioid Pain Reliever

        What does OPR stand for? Abbreviation of OPR, definition of OPR, Explanation of OPR, Full forms of short form OPR.

         We are providing world largest and most comprehensive acronyms, abbreviations directory and search engine for acronyms on the Internet. Abbreviations Finder contains more than 7 million abbreviations and acronyms. You can also search for more than 740,000 general Comprehensive words.