- one circuit of a track or racetrack；a stage in a swim consisting of two lengths (or one length) of a pool
- overtake (a competitor in a race) to become one or more laps ahead；(of a competitor or vehicle in a race) complete a lap, especially in a specified time
verb: lap, 3rd person present: laps, gerund or present participle: lapping, past tense: lapped, past participle: lapped
noun: lap, plural noun: laps
- 1. one circuit of a track or racetrack heavy rain stopped the race after 18 laps a lap record
- ▪ a stage in a swim consisting of two lengths (or one length) of a pool everyone did ten laps of the pool
- ▪ a part or section of a journey or other undertaking we caught a cab for the last lap of our journey
- 2. an overlapping or projecting part cut to the depth and width of the lap
- ▪ the amount by which one thing overlaps or covers a part of another they have sufficient lap to act compositely
- ▪ a defect formed in rolling when a projecting part is accidentally folded over and pressed against the surface of the metal.
- 3. a single turn of rope, thread, or cable around a drum or reel.
- ▪ a layer or sheet, typically wound on a roller, into which cotton or wool is formed during its manufacture.
- 4. (in a lapping machine) a rotating disk with a coating of fine abrasive for polishing.
- ▪ a polishing tool of a special shape, coated or impregnated with an abrasive.
- 1. overtake (a competitor in a race) to become one or more laps ahead she lapped all of her rivals in the 3,000 meters 同義詞
- ▪ (of a competitor or vehicle in a race) complete a lap, especially in a specified time he lapped two tenths of a second faster than anyone else
- 2. literary enfold or swathe a person or thing, especially a part of the body, in (something soft) he was lapped in blankets I was accustomed to being lapped in luxury 同義詞
- 3. project beyond or overlap something the water lapped over the edges
- 4. polish (a gem or a metal or glass surface) with a lapping machine the honing and lapping of ring gauges