patchouli

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A small southeast Asian shrub (Pogostemon cablin) in the mint family, having leaves that yield a fragrant oil used in the manufacture of perfumes.
• noun A perfume made from the oil of this plant.

from The Century Dictionary.

• noun An East Indian odoriferous plant, Pogostemon Patchouli, of the mint family.
• noun The perfume itself.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Bot.) A small shrubby mintlike plant (Pogostemon cablin syn. Pogostemon Patchouli) of the East Indies, yielding an essential oil from which a highly valued perfume is made.
• noun The heavy perfume made from the patchouli plant.
• noun (Chem.) a substance homologous with and resembling borneol, found in patchouly oil.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Any of several East Indian menthaceous plants which yield a highly fragrant oil.
• noun The oil or perfume made from these plants.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun small East Indian shrubby mint; fragrant oil from its leaves is used in perfumes
• noun a heavy perfume made from the patchouli plant