n.
A mental disorder characterized by severe depression, guilt, hopelessness, and withdrawal.
[Late Latin, melancholy. See melancholy.]
melancholiac mel'an·cho'li·ac (-lē-ăk') adj. & n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
