riser

/ˈraɪzər/

/ˈraɪzə/

Other forms: risers

Definitions of riser

1. noun

   a person who rises (especially from bed)
   “he's usually a late riser”

   types:

   early bird

   a person who gets up very early in the morning

   type of:

   individual, mortal, person, somebody, someone, soul

   a human being
2. noun

   a vertical pipe in a building
   synonyms: riser main, riser pipe, riser pipeline

   type of:

   pipage, pipe, piping

   a long tube made of metal or plastic that is used to carry water or oil or gas etc.
3. noun

   structural member consisting of the vertical part of a stair or step
   type of:

   structural member

   support that is a constituent part of any structure or building