from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Abnormally slow, shallow breathing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a disorder which involves episodes of overly shallow breathing or an abnormally low respiratory rate.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. slow or shallow breathing
hypo- + Greek pnoiā, -pnoia, breath; breathing (from pnein, to breathe]).(American Heritage® Dictionary of the English Language, Fourth Edition)
hypo- + -pnea (Wiktionary)