A lap is the area on top of the thighs of a sitting person. Lap Lap may also refer to: One circuit in a speed sport, e.g. around a race track or swimming pool Lapping or "to lap", an abrasive machining process Lap joint, a technique for joining two materials Laps, Puy-de-Dôme, France People with surname Lap: Geert Lap (born 1951), Dutch ceramist LAP LAP may refer to: Los Angeles Pacific Railroad Manuel Márquez de León International Airport, IATA code La Plata (Amtrak station), Missouri, USA (Amtrak code) Lambert Academic Publishing, a publishing house of the VDM Group Latency-associated peptide, associated with tumors Leukocyte alkaline phosphatase, in white blood cells Language/action perspective, a computational paradigm Líneas Aéreas Paraguayas, initials and ICAO code of the former national airline of Paraguay Linhas Aéreas Paulistas – LAP, former Brazilian airline Lima Airport Partners, operator of the airport in Peru Limiting absorption principle, a concept in Spectral Theory (Mathematics) Luzenac Ariège Pyrénées, a French association football team Light-addressable potentiometric sensor, light sensor technology Other Lanthanum phosphide, a chemical compound with the formula LaP See also Lapp (disambiguation) llap (disambiguation) IAP (disambiguation) tr:Tur