The second was the law of definite proportions.

A substance that holds a definite proportion of water in its crystal structure is called Hydrate.

Evidence for the existence of atoms was the law of definite proportions proposed by him in 1792.

Between 1792 and 1794 he published a three-volume summary of his work on the law of definite proportions.

With these hooks, one atom could combine with another in definite proportions.

Although very useful in the foundation of modern chemistry, the law of definite proportions is not universally true.

A compound is a pure substance composed of two or more elements combined in fixed and definite proportions.

Although Dalton "won" for the most part, it was later recognized that the law of definite proportions did have important exceptions.

Island McGill was only so large, and the land could support but a certain definite proportion of those that dwelt upon it.

He was now a hundred yards from the water, and the inverted "V" was assuming definite proportions.