Pronunciation: (lûr'nid for 1–3; lûrnd for 4), [key]
1. having much knowledge; scholarly; erudite: learned professors.
2. connected or involved with the pursuit of knowledge, esp. of a scholarly nature: a learned journal.
3. of or showing learning or knowledge; well-informed: learned in the ways of the world.
4. acquired by experience, study, etc.: learned behavior.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.