Noun

(en noun) (wikipedia)

A pleasant smell; the scent, odor, or odoriferous particles emitted from a sweet-smelling substance; a pleasant odor; fragrance; aroma.

*

*:Breezes blowing from beds of iris quickened her breath with their perfume ; she saw the tufted lilacs sway in the wind, and the streamers of mauve-tinted wistaria swinging, all a-glisten with golden bees; she saw a crimson cardinal winging through the foliage, and amorous tanagers flashing like scarlet flames athwart the pines.

A substance created to provide a pleasant smell or one which emits an agreeable odor.

*{{quote-magazine, date=2014-03-07, author= Nicole Vulser

, volume=190, issue=13, page=30, magazine=(The Guardian Weekly) , title= Perfume manufacturers must cope with the scarcity of precious supplies , passage=The perfume industry is facing a major problem: maintaining constant levels of quality is crucial, but it is increasingly difficult to obtain a regular supply of all the necessary natural ingredients.}}

Noun

(-) (wikipedia heptanaldehyde)

(chemistry) An alkyl aldehyde with a strong fruity odour, used in flavouring and perfumes.