the recollection or remembrance of the past; reminiscence.
Platonism. recollection of the Ideas, which the soul had known in a previous existence, especially by means of reasoning.
the medical history of a patient.
Immunology. a prompt immune response to a previously encountered antigen, characterized by more rapid onset and greater effectiveness of antibody and T cell reaction than during the first encounter, as after a booster shot in a previously immunized person.
(often initial capital letter) a prayer in a Eucharistic service, recalling the Passion, Resurrection, and Ascension of Christ.