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WordReference Random House Learner's Dictionary of American English © 2024ris•er /ˈraɪzɚ/USA pronunciation n. [countable]- one who rises, esp. from bed:He's an early riser.
- Buildingthe vertical face of a stair step.
- Building
- a long low platform on which persons can stand to be seen better, as on a stage.
- risers, [plural] a group of such platforms connected stepwise.
WordReference Random House Unabridged Dictionary of American English © 2024ris•er (rī′zər),USA pronunciation n. - a person who rises, esp. from bed:to be an early riser.
- Buildingthe vertical face of a stair step.
- Buildingany of a group of long boards or narrow platforms that can be combined in stepwise fashion:The choir stood on a horseshoe of risers behind the orchestra.
- Buildinga vertical pipe, duct, or conduit.
- Metallurgya chamber or enlarged opening at the top of a mold for allowing air to escape or adding extra metal.
- [Naut.]
- a heavy strake of planking in the vicinity of the garboard strake in a wooden vessel.
- rising (def. 10).
- 1350–1400; Middle English; see rise, -er1
Collins Concise English Dictionary © HarperCollins Publishers:: riser /ˈraɪzə/ n - a person who rises, esp from bed: an early riser
- the vertical part of a stair or step
- a vertical pipe, esp one within a building
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