olfaction
Olfaction (noun) means the sense of smell, or the process of detecting airborne molecules. Example: “Dogs rely far more on olfaction than people do.”
How to use olfaction
Learner’s notesIn plain EnglishOlfaction is the technical word for the sense of smell.
It is a scientific or technical term, and most people simply say the sense of smell.
Use the related adjective olfactory when you want to describe something connected with smell.
Trace the full origin ↓Fill the gap
Can you complete this real example?
Dogs rely far more on _____ than people do.
Etymology
English took the word from Middle French, which in turn drew on the Latin olfactus, a form of the verb olfacio, meaning to smell. The ending -tion was added to make a noun.