Memorandum check
Also found in: Legal.
a check given as an acknowledgment of indebtedness, but with the understanding that it will not be presented at bank unless the maker fails to take it up on the day the debt becomes due. It usually has Mem. written on its face.
See also: Memorandum
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.