Clairalience

Clairalience (from French: clair ["clear"] + alience ["smelling"]; literally "clear smelling") is a term for the ability to acquire information, particularly by utilising scent as an extra-sensory perceptive mode.

Similar abilities include clairvoyance (visual), clairaudience (audio), clairgustance (taste), clairsentience (feeling), and claircognizance (knowing).