noun
a solution containing a buffer
• Hypernyms: ↑solution
• Hyponyms: ↑starting buffer, ↑phosphate buffer solution, ↑PBS
• Substance Meronyms: ↑buffer
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noun : a solution that usually contains on the one hand either a weak acid (as carbonic acid) together with one of the salts of this acid or at least one acid salt of a weak acid or on the other hand a weak base (as ammonia) together with one of the salts of the base and that by its resistance to changes in hydrogen-ion concentration on the addition of acid or base is useful in many chemical, biological, and technical processes
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buffer solution,
a substance in a solution that makes the degree of acidity (hydrogen ion concentration) resistant to change when an acid or base is added.
Useful english dictionary. 2012.