From Longman Dictionary of Contemporary EnglishRelated topics: Lawmemorandummem‧o‧ran‧dum /ˌmeməˈrændəm/ noun (plural memoranda /-də/ or memorandums) [countable]1formalBBCLETTER a memo2lawSCL a shortlegaldocument that contains the important details of an agreementExamples from the Corpusmemorandum• Between five and 15 consultantschosen from a large pool of employees are typically called upon to review any given idea memorandum.• What is said in a letter or memorandum is partly how it is said.• When Meese handed North the memorandum, he at first showed no surprise.• Reagan is also being accused of ordering scientists to ignore the terms of reference of the memorandum.• Nevertheless, we will, of course, require your assistance in drafting the non-financial section of the memorandum.• The Councilreceived the memorandum, and set up a sub-committee to consider it, with Lord Kings Norton in the chair.From Longman Business Dictionarymemorandummem‧o‧ran‧dum /ˌmeməˈrændəm/ noun (plural memoranda /-də/ or memorandums) [countable]1formal a MEMOThe accusations were first set out in an internal memorandum to the chairman.2LAW a legal document recording the important details of an agreementOriginmemorandum(1400-1500)Latin“thing to be remembered”, from memorare; → MEMORABLE