Main Entry: path·way

Pronunciation: \ˈpath-ˌwā, ˈpȧth-\

Function: noun

1 : a line of communication over interconnecting neurons extending from one organ or center to another ; also : a network of interconnecting neurons along which a nerve impulse travels
2 : the sequence of usually enzyme-catalyzed reactions by which one substance is converted into another <metabolic pathways>