Helicopter: A flying machine (heavier-than-air) that uses motor-driven rotors for support in the air. These rotors also provide the main force to propel it horizontally. A rotorcraft.
https://www.nasa.gov/pdf/205694main_Aeronautics_Glossary.pdf
Slot coordinator: Government-appointed person tasked with allocating available slots (licences to take off and land at specific times) in accordance with international regulations
Bird strike: Bird strikes are incidents in which dead birds or bird remains are found on an aircraft or a runway and in which it can reasonably be assumed that the strike occurred within the airport boundaries