riser Meaning, Definition & Usage

  1. noun a person who rises (especially from bed)
    • he's usually a late riser
  2. noun a vertical pipe in a building
    riser pipe; riser pipeline; riser main.
  3. noun structural member consisting of the vertical part of a stair or step

WordNet


Ris"er noun
Definitions
  1. One who rises; as, an early riser.
  2. (Arch.) (a) The upright piece of a step, from tread to tread. Hence: (b) Any small upright face, as of a seat, platform, veranda, or the like.
  3. (Mining) A shaft excavated from below upward.
  4. (Founding) A feed head. See under Feed, n.

Webster 1913