law of definite composition

noun

Chemistry. the statement that in a pure compound the elements are always combined in fixed proportions by weight.

Logic. the law that either a proposition or its denial must be true.

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Nearby words

law of averages, law of conservation, law of contiguity, law of contradiction, law of cosines, law of definite composition, law of diminishing marginal utility, law of diminishing returns, law of dominance, law of effect, law of excitation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019