olfaction

noun

1. the act of smelling.
2. the sense of smell.

noun

1. the sense of smell
2. the act or function of smelling

n.noun of action from Latin olfactus, past participle of olfacere “to smell, get the smell of” (transitive), from olere “to emit a smell” (see odor) + facere “to make” (see factitious). n.

1. The sense of smell.