"oscillation frequency" refers to how quickly something moves back and forth. It measures the number of times an object completes its cycle of movement in a specific time period. Full definition
As long as the field changes at a rate slower than the natural oscillation frequencies of the atom, the dipole moment remains aligned with the field. (scientificamerican.com)
By turning the noise on and off at just the right rate, the researchers can tune the engine so that the frequency of the ion's up - and - down motion exactly matches the trap's natural oscillation frequency. (sciencemag.org)
Like drums in regular drumsets, graphene membranes at the nanoscale possess a distinct set of oscillating modes that correspond to specific oscillation frequencies. (sciencedaily.com)