The fragrance in plants and other substances; a pleasant, often a spicy, odour; a spiritual fragrance.
- Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914. (noun) (n.) (noun)
The odor of a substance, generally agreeable or spicy; perfume; fragrance.
- The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919. (noun) (n.) (noun)
The fragrant principle in plants; an agreeable odour or smell.
- Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874. (noun) (n.) (noun)
Sweet smell: the odorous principle of plants: ( fig.) flavor of any kind.
- The american dictionary of the english language. By Daniel Lyons. Published 1899. (noun) (n.) (noun)
The odorous principle in plants; fragrance.
- The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894. (noun) (n.) (noun)

Usage examples:

The aroma rising from it was one he had almost forgotten existed in this world of constant riding and poor forage.
- Ride Proud, Rebel! by Andre Alice Norton
Deny an aroma of life to the boot in wear, and it must ere long be denied to ninety- nine per cent.
- Luck or Cunning? by Samuel Butler
And there is an aroma and a murmuring, and a breathing and a laughter, And in the blue sky the little birds are singing, Thalatta!
- Poems and Ballads of Heinrich Heine by Heinrich Heine