n.
Pronunciation: ˌ sto ̇ i-k ē - ' ä-m ə -tr ē
Function: noun
Etymology: Greek stoicheion element (fr. stoichos row) + English -metry; akin to Greek steichein to walk, go ― more at STAIR
Date: 1807
1 : a branch of chemistry that deals with the application of the laws of definite proportions and of the conservation of mass and energy to chemical activity
2 a : the quantitative relationship between constituents in a chemical substance b : the quantitative relationship between two or more substances especially in processes involving physical or chemical change