gastroesophageal reflux disease (GERD) any of various conditions resulting from gastroesophageal reflux, ranging in seriousness from mild to life-threatening; principal characteristics are heartburn and regurgitation. When there is damage to the esophageal epithelium, it is known as reflux esophagitis.
Missouri Compromise Map. (Missouri Compromise 1820 Map) An Act to authorize the people of the Missouri territory to form a constitution and state government, and for the admission of such state into the Union on an equal footing with the original states, and to prohibit slavery in certain territories.
When in doubt, defer to a good reference. Briefly, all MoUs are an expression of agreement but not all agreements are MoUs. (Assuming that is what you meant - if you meant a combination of Molybdenum and Uranium, then all bets are off.) A memorandum of understanding (MOU or MoU) is a formal agreement between two or more parties. Companies and organizations can use MOUs to establish official partnerships.