Quelques termes liées à la parfumerie :

Ease
Decrease the olfactive intensity of a note or a composition by lowering the concentration of one or some of her components.

Diffusion
Dispersal of a smell in the atmosphere.

Evaporation
Passage of the liquid state in the gas state, coming along with a nice-smelling release; the speed of the evaporation depends on the more or less volatile character of the considered substance.

Oxidation
Perfume chemical reaction by contact with the oxygen atmosphere.

Volume
About perfume which develops widely in the atmosphere.