riser Meaning, Definition & Usage
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noun a person who rises (especially from bed)
- he's usually a late riser
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noun a vertical pipe in a building
riser pipe; riser pipeline; riser main.
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noun structural member consisting of the vertical part of a stair or step
WordNet
Ris"er noun
Definitions
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One who rises; as, an early .riser -
(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. -
(Mining) A shaft excavated from below upward. -
(Founding) A feed head. See under Feed , n.