One of the five canons of classical rhetoric: the discipline of memory and recall.

A memory-aid; a reminder or memorandum, especially a book or document serving this purpose. / (diplomacy) A document circulated in a meeting or summit for discussion purposes.

plural of pro memoria

(historical) Condemnation of memory: a posthumous punishment for traitors etc. in Ancient Rome by which they were effectively erased from history by having their works undone and any mention of their name forbidden.

(formal, uncommon) A slip of memory; an instance of forgetting.

In memory (of); as a memorial.

An announcement or composition etc. in memory of a deceased person.

(obsolete) Memory; recollection. / Something, such as a monument, by which someone or something is remembered. / A chronicle or memoir. / (now rare) A note or memorandum.

Serving as a remembrance of someone or something; commemorative. / Contained in the memory. / (now rare) Mnemonic; assisting the memory.

plural of memorial