1. The property or quality of a thing that affects, stimulates, or is perceived by the sense of smell. See synonyms at smell.
2. A sensation, stimulation, or perception of the sense of smell.
3. A strong, pervasive quality: An odor of sadness permeated the gathering.
4. Esteem; repute: a doctrine that is not currently in good odor.

[Middle English odour, from Old French, from Latin odor.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.