from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Greek Mythology The god of sleep.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. The god of sleep.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (Greek mythology) the Greek god of sleep; the son of Nyx
From Ancient Greek Ὕπνος (Hupnos) (Wiktionary)