Olfactorins 

Those lovely, unknown, rain-smelling molecules released from the ground into the night air after the first rains, ready to hit the olfactory receptors of your own still-a-bit-asleep-nose as you wake up to a new dawn.

"She is aware the air on the plateau is filled with the scent of olfactorins after the first rains as she continues to pound her way onwards: her eyes focussed now on her distant goal, the two, upside-down baobabs at the edge of the escarpment."

Olfactorins by mimbijones April 3, 2023

Olfactorithmetic 

The ability to glance at a document and announce "This number smells wrong". It is not necessarily correlated with the ability to show workings as to why it's wrong. Those who have cultivated olfactorithmetic abilities may need to ask a colleague to calculate, but often the numbers their noses identify turn out to stink."

THE BBC, Mike Moore observes, isn’t universally blessed with the ability to detect numbers that smell wrong, or olfactorithmetic.

Olfactorithmetic by ProcessMaster July 28, 2014