Dictionary
sop•o•rif•ic
Pronunciation: (sop"u-rif'ik, sō"pu-), [key]—
adj.
1. causing or tending to cause sleep.
2. pertaining to or characterized by sleep or sleepiness; sleepy; drowsy.
—
n.
something that causes sleep, as a medicine or drug.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.