Olfaction, sense of smell, the ability of humans and other animals to perceive odors
Odor, the percept resultant from the sense of smell. The environmental stimulus which gives rise to a 'smell' which is made up of numerous monomolecular odorants
In programming, a code smell is a symptom in the source code of a program that something is wrong
Smell is like taste and is a chemical sense detected by sensory cells called chemoreceptors.
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