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odorant

/ɒdərənt/ · o.dor.ant
noun
  1. A substance that has a distinctive smell, especially one added to something (such as household gas) for safety purposes. The fire extinguisher contained an odorant to alert people in case of a fire.
adjective
  1. Having a strong or unpleasant smell. The odorant fumes from the chemicals made it difficult to work in the lab.
Did you know? The first commercial air fresheners, known as 'odorants', were introduced in the early 20th century and contained fragrances like lavender and rose to eliminate unpleasant smells in homes and public spaces.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 18, 2026