Définitions
1.VerbTo cause (something) to be physically disordered or disturbed; to cause confusion.
2.VerbTo cause (something) to be physically disordered or disturbed; to cause confusion.
3.VerbTo disturb (someone, their mind, etc.) mentally; to bother, trouble, upset.
4.VerbOf a celestial body: to modify the motion or orbit of (another celestial body) by exerting a gravitational force; hence , to slightly modify (the motion of an object).
5.VerbTo slightly modify (a set of equations or their solutions), producing deviations from a simple, easily solvable problem, in order to find an approximate solution to a problem that is more difficult to solve or otherwise unsolvable.
6.VerbTo influence (a process or system) so that it deviates from its normal state.
7.VerbTo bother, to disturb, to trouble.