Quadrocopter
quadcopter
Quadrokopter
quadcopter
Quadratmeter
square meter
square metre
Quadrofonie
quadraphonic sound
Quadrupeder
quadruped
Quadratur
quadrature
Quadrieren
quadrature
quadrieren
square
Quadrupede
quadruped
Quader
cuboid
rectangular cuboid
rectangular parallelepiped
Quadrant
quadrant
Quadrat-
square
Quadrat
square
Quadratum
quadrate bone
Quadrille
quadrille
Quadrizeps
quadriceps
Quantencomputer
quantum computer
Quantenoptik
quantum optics
Quartier
accommodation
quarter
Quartär
Quaternary