Odor n. : Any smell, whether fragrant or offensive; scent; perfume.

Example:
How to get rid of the Odor on the coat?

Taxonomy
odor, emission, odor concentration, concentration, dilution, physisorption, chemisorption, panelists, sampling, molecules, adsorption, Odor intensity, gas, unpleasant odors, Emission measurement, olfactometer, stack, odor panel.

Defination from the web:
Odor receptors on the antennae of a Luna moth ... Because of this, an objective and analytical measure of odor is impossible. While odor feelings are very personal perceptions, individual reactions are related to gender, age, state of health, and private affectations. ...