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.