Of a person: dedicated to study; assiduous in the acquisition of learning. Formerly also with †in, †of.

Enthusiastic or serious about reading books; studious.

That reads; esp. (designating a habitual reader) literate, studious, etc.

Of a person, esp. a child: interested in or excelling at scholarly pursuits and activities; bookish, studious; clever.

Designating or characteristic of a swot (swot, n. 2); studious, esp. to the exclusion of other activities.