noun
(education) A coursebook, a formal manual of instruction in a specific subject, especially one for use in schools or colleges.
adjective
(literally) Of or pertaining to textbooks or their style, especially in being dry and pedagogical; textbooky, textbooklike.
(figuratively) Having the typical characteristics of some class of phenomenon, so that it might be included as an example in a textbook.
(figuratively) Done exactly correctly, in an exemplary way that might be described in a textbook.
(figuratively) Learned from, or as if learned from, a textbook, as opposed to personal discovery or experience.