any of several bodily processes by which substances go out of the body; "the discharge of pus" [also: the discharged substance]
4
road
an open way (generally public) for travel or transportation
4
path
a line or route along which something travels or moves: "the hurricane demolished houses in its path"; "the track of an animal"; "the course of the river"
4
stream
a natural body of running water flowing on or under the earth
