1 definition by Diana Gaughan
an intense, sometimes short-lived interest in a subject, which makes it seem like everything you encounter is related to and/or reminds you of that theory, area, object, etc. Also the tendency to gather and hoarde knowledge, trivia, etc about your subject.
Lately I've had an infactuation with all things Madagascan, especially lemurs. I thought I heard a sifaka in the tree at my bus stop this morning, but it turned out to be the neighborhood's cat-of-the-week in heat.
by Diana Gaughan May 11, 2006