from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A mild affective disorder characterized by alternating periods of elevated and depressed mood.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a chronic mental disturbance characterized by mood swings and depression
from the GNU version of the Collaborative International Dictionary of English
- n. a mild bipolar disorder.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a mild bipolar disorder that persists over a long time
From the Ancient Greek κῠκλος (kuklos, "circle") + θῡμός (thūmos, "temper”, “disposition"). (Wiktionary)