SmellDefinition (http://en.wikipedia.org/wiki/Odor) An odor or fragrance (commonly referred to as a smell) is caused by one or more volatilized chemical compounds, generally at a very low concentration, that humans or other animals perceive by the sense of olfaction. (Wikipedia) Preferred Units: N/A Scope Note: http://en.wikipedia.org/wiki/Odor This term is used for the following terms: Fragrance Odor Odour Scent
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