Main Entry: ste·reo·chem·is·try

Pronunciation: \ˌster-ē-ō-ˈke-mə-strē, ˌstir-\

Function: noun

Etymology: International Scientific Vocabulary

Date: 1890

1 : a branch of chemistry that deals with the spatial arrangement of atoms and groups in molecules
2 : the spatial arrangement of atoms and groups in a compound and its relation to the properties of the compound

— ste·reo·chem·i·cal \-ˈke-mi-kəl\ adjective