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Definition of Riser
1. Noun. A person who rises (especially from bed). "He's usually a late riser"
Specialized synonyms: Early Bird
Derivative terms: Rise, Rise
2. Noun. A vertical pipe in a building.
3. Noun. Structural member consisting of the vertical part of a stair or step.
Definition of Riser
1. n. One who rises; as, an early riser.
Definition of Riser
1. Noun. Someone or something which rises. ¹
2. Noun. A platform or stand used to lift or elevate something. ¹
3. Noun. The vertical part of a step on a staircase. ¹
4. Noun. (archery) The main body of a bow. ¹
5. Noun. A conduit or path between floors of a building for placement of telephone, networking, and other utility cables. ¹
¹ Source: wiktionary.com
Definition of Riser
1. one that rises [n -S] - See also: rises
Medical Definition of Riser
1.
1. One who rises; as, an early riser.
2. The upright piece of a step, from tread to tread. Hence: Any small upright face, as of a seat, platform, veranda, or the like.
3.