释义 |
ris·er \ˈrīzə(r)\ noun (-s) Etymology: Middle English, from risen to rise + -er — more at rise 1. : one that rises: as a. : one that gets up from sleep < birds are early risers > b. : insurgent c. : a part in a machine that operates by rising 2. a. : the upright member between two stair treads — compare open riser b. : an upright face (as of a platform or veranda) suggesting a stair riser c. : a topographic feature resembling a stair riser (as a steep slope between terraces of different altitude or between flat parts of a stepped glaciated valley floor) 3. : raise II 4 4. a. : feedhead b. : a channel or head in a foundry mold (as to permit escape of air) 5. : a block on which a printing plate (as a stereotype or electrotype) is mounted 6. : a device or structure used to increase elevation: as a. : one of two members placed below a seat to raise it b. : any of various movable platforms for stage use on which performers are placed for better visibility < portable risers adequate for a full orchestra > 7. a. : a vertical supply or return pipe for steam, water, or gas b. : a vertical wire connecting two floors in the electric wiring system of a building 8. : a raised or marked spot where the warp passes over the weft or over the filling in a weaving pattern — compare sinker 8 9. : one of four straps attaching a parachutist's harness to the parachute — see parachute illustration |