Definition of acesulfame-K
: a white crystalline powder C4H4KNO4S that is a cyclic organic potassium salt, has a sweetness much more intense than sucrose, and is used as a noncaloric sweetener in foods and beverages
— called also acesulfame potassium
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Merriam-Webster unabridged
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Time Traveler for acesulfame-K
The first known use of acesulfame-K was in 1982
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