When you're fascinated, you're hypnotized, mesmerized, spellbound, and transfixed — totally absorbed by something.
There are two ways to be fascinated: You can be fascinated by something happening right now, like an interesting new video game you're playing. Other fascinations are more long term, like a scientist who devotes his life to studying birds because he's fascinated by them. Things that make you fascinated have to be so interesting and so intriguing that it feels like they have a magic grip on your attention span.
