ˈnäps-, kəˈnōps- noun
Usage: usually capitalized K
Etymology: after J. A. L. W. Knop died 1891 German chemist
: a nutrient solution used in growth experiments with higher plants and containing definite proportions of calcium nitrate, potassium nitrate, magnesium sulfate, monobasic potassium phosphate, and potassium chloride dissolved in water