Pronunciation: (mu-men'tō),[key] —n., —pl.-tos, -toes. 1. an object or item that serves to remind one of a person, past event, etc.; keepsake; souvenir.
2. anything serving as a reminder or warning.
3. (cap., italics) Rom. Cath. Ch.either of two prayers in the canon of the Mass, one for persons living and the other for persons dead.