a person who rises (especially from bed); he's usually a late riser'
a vertical pipe in a building
[ Syn: riser pipe , riser pipeline , riser main ]
structural member consisting of the vertical part of a stair or step
a person who rises (especially from bed); he's usually a late riser'
a vertical pipe in a building
[ Syn: riser pipe , riser pipeline , riser main ]
structural member consisting of the vertical part of a stair or step