law of definite composition
Americannoun
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Chemistry. the statement that in a pure compound the elements are always combined in fixed proportions by weight.
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Logic. the law that either a proposition or its denial must be true.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It will be observed that this fact does not contradict the law of definite composition, for entirely different substances are formed.
From Project Gutenberg
The atomic hypothesis and the law of definite composition.
From Project Gutenberg
This truth is known as the law of definite composition, and may be stated thus: The composition of a chemical compound never varies.
From Project Gutenberg
Iron sulphide, from whatever source, will have the same composition, which is in accordance with the law of definite composition.
From Project Gutenberg
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
