a track that constitutes or serves as a path:a tree-lined pathwaythe crags and cornices of the mountainous pathways
a way of achieving a specified result; a course of action:research has indisputably been part of the pathway to progress
Physiology a route, formed by a chain of nerve cells, along which impulses of a particular kind usually travel:these neural pathways control vocalization
(also metabolic pathway) Biochemistry a sequence of chemical reactions undergone by a compound or class of compounds in a living organism:enzymes of the glycolytic pathwaythe principal regulatory step in the biosynthetic pathway of cholesterol
