sense of smell; olfaction

the nerve responsible for the sense of smell, extending from the lower part of the brain to the lining of the nose

the structure in the brain of vertebrates that processes odors

to sniff around in order to find something

a dog trained to use its keen sense of smell to assist in tasks such as drug detection, solving crimes, or search and rescue

olfactory organ; the system of organs responsible for the sense of smell, including the nasal cavity, olfactory cells, and olfactory nerves