Dictionary
ran•cid
Pronunciation: (ran'sid), [key]—
adj.
1. having a rank, unpleasant, stale smell or taste, as through decomposition, esp. of fats or oils:
rancid butter.
2. (of an odor or taste) rank, unpleasant, and stale:
a rancid smell.
3. offensive or nasty; disagreeable.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.