noun
A substance used to eliminate or mask unpleasant odors.
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The odorizer in the bathroom automatically releases a pleasant scent every hour.
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I bought a new odorizer for the kitchen to get rid of the cooking smells.
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I sprayed some odorizer in my car to cover up the smell of fast food.
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Her kindness acted as an odorizer, masking the unpleasantness of the situation.