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Dictionary Suite
acidosis an abnormally high acidity of body tissues and fluids.
acid rain rain that has high acidity because of being mixed with pollutants such as vehicle exhausts and residues from burning of fossil fuels for energy or from chemical manufacturing.
acidulous faintly sour in taste; of mild acidity. [1/2 definitions]
antacid neutralizing or correcting acidity. [2 definitions]
buffer1 in chemistry, a substance that preserves the relative acidity or alkalinity of a solution when an acid or base is added. [1/6 definitions]
litmus paper a small strip of white paper treated with litmus, used in chemistry as an indicator of acidity and alkalinity.
pH a symbol for a measure of the degree of alkalinity or acidity of a solution, determined by the concentration or activity of hydrogen ions therein (often fol. by a number, with seven indicating neutrality, zero to six indicating acidity, and eight to fourteen indicating alkalinity).