Pronunciation: (in-fach"OO-ā'shun),[key] —n. 1. the state of being infatuated.
2. the act of infatuating.
3. foolish or all-absorbing passion or an instance of this: a mere infatuation that will not last. 4. the object of a person's infatuation: When I was a kid, my infatuation was stamp collecting.