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  • Odor Fragrant molecule suspended in the air and perceived by the olfactive system.
  • Olfactive balance   Combination of fragrant components in which none are predominant.
  • Olfactive Pyramid Structure that gives the description of a fragrance according to its top, middle and base notes.
  • Olfactive Memory The brain's capacity to retain the memory of previously perceived odors.
  • Oxidation Chemical reaction of a fragrance in contact with oxygen in the air.