Quelques termes liées à la parfumerie :

Round out ((To ... a composition)
Full of imagery expression which tries to define the final work of the creator to give to his composition a bigger harmony and the best balance of its components.

Dilute
Decrease the concentration of a nice-smelling product.

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.

Scent
That affects the sense of smell.

Tincture
Cold or warm Dissolution of the soluble parts of a solid body by prolonged contact with a liquid, mostly alcoholic.