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. Odors are also commonly called scents, which can refer to both pleasant and unpleasant odors. The terms fragrance and aroma are used primarily by the food and cosmetic industry to describe a pleasant odor, and are sometimes used to refer to perfumes. In contrast, malodor, stench, reek, and stink are used specifically to describe unpleasant odor.

In the United Kingdom, odour refers to scents in general. In the United States, odor has a more negative connotation, such as smell, stench or stink, while scent or aroma are used for pleasant smells.

Read more about Odor:  Basics, Measurement, In The Indoor Environment, Legislative Provisions, Adsorption As Separating Process, Types, Behavioral Cues, See Also

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Chicken Fart - Pathology - Management - Odor
... Odor from flatulence is commonly treated with bismuth subgallate, available over-the-counter as Devrom ...
Methyl Dihydrojasmonate
... In racemic mixtures the odor is floral and citrus while epimerized mixtures exhibit a dense fatty floral odor with odor recognition thresholds of 15 parts per billion ...
Rachel Sarah Herz - Psychology of Smell
... Her research has shown how odor-evoked memory is emotionally unique compared to other kinds of memory experiences, how emotional associations can change odor perception, and how odors can be ... Her work also deals with how language can affect odor perception and her laboratory has empirically demonstrated the first instance of olfactory illusions created by words alone ... A third area of her research concerns the role of body-odor and fragrance in heterosexual attraction ...
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... a white or transparent solid with a strong, aromatic odor ... The flavor is fruity and strawberry-like and the odor is sweet, balsamic with fruity odor, reminiscent of cinnamon and strawberry ...

Famous quotes containing the word odor:

    Moisture and color and odor thicken here.
    The hours of daylight gather atmosphere.
    Robert Frost (1874–1963)

    There is no odor so bad as that which rises from goodness tainted. It is human, it is divine carrion.
    Henry David Thoreau (1817–1862)

    The spring over there takes you by the throat, the flowers blooming by the thousands over white walls. If you strolled around for an hour in the hills surrounding my town, you would return with the odor of honey in your clothes.
    Albert Camus (1913–1960)