/ ˌmeməˈrændəm; NAmE / noun ( pl. memo·randa / ˌmeməˈrændə; NAmE /)
1.
( formal ) = memo :
an internal memorandum
2.
( law ) a record of a legal agreement which has not yet been formally prepared and signed
3.
a proposal or report on a particular subject for a person, an organization, a committee, etc. :
a detailed memorandum to the commission on employment policy
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WORD ORIGIN
late Middle English : from Latin , literally something to be brought to mind , gerundive of memorare . The original use was as an adjective, placed at the head of a note of a record made for future reference.