Definition.com
A Lecture is the art of transferring information from the notes of the lecturer to the notes of the students without passing through the minds of either.
Definition.com
The Lecture is dreadfully boring and good for only one thing - to give a certain education to the persons who write the lectures.
Definition.com
A Lecture is a process by which a professor's notes are passed to his students without necessarily passing through the brains of either.