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, or the detection of odours that are not detected in the immediate environment by others.

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