(chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)

WordNet Word definitions in WordNet
n. (chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)

Wiktionary Word definitions in Wiktionary
n. 1 (context uncountable chemistry English) The study and calculation of quantitative (measurable) relationships of the reactants and products in chemical reactions (chemical equations). 2 (context countable chemistry English) The quantitative relationship ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"science of calculating the quantities of chemical elements involved in chemical reactions," 1807, from German Stöchiometrie (1792), coined by German chemist Jeremias Benjamin Richter (1762-1807) from Greek stoikheion "one of a row; shadow-line of a sundial," ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Stoichiometry \Stoi`chi*om"e*try\, n. [Gr. ? a first principle, or element + -metry.] The art or process of calculating the atomic proportions, combining weights, and other numerical relations of chemical elements and their compounds.

Wikipedia Word definitions in Wikipedia
Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions . Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass of the products leading to ...