stoichiometry

• POS: Noun
• HYPHEN: stoi=chi=om=e=try

CIDE DICTIONARY

stoichiometry, 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.  [1913 Webster]

OXFORD DICTIONARY

stoichiometry, n. (also stoichometry) Chem.
1 the fixed, usu. rational numerical relationship between the relative quantities of substances in a reaction or compound.
2 the determination or measurement of these quantities.

Derivative

stoichiometric adj.

Etymology

Gk stoikheion element + -METRY