Frequency oscillations refer to the regular back-and-forth movements or vibrations that occur at a certain rate. It means something is repeatedly going from one extreme to another at a consistent speed or frequency. Full definition
«We observed that the high frequency oscillations in the SOZ form random, repetitive waveform patterns that identify their location,» said Ince, who compares the process to a broken bike or car which makes the same sound randomly, yet repetitively. (sciencedaily.com)
Godknect emphasizes that sharks have «excellent» hearing and can detect low frequency oscillations of injured fish at 100 Hz. (srfer.com)
High frequency oscillations in the λ 13C composition of long chain fatty acids during MIS 3 appear to coincide with Dansgaard / Oeschger variability in high latitude ice cores, with positive (negative) excursions occurring during stadial (interstadial) periods. (realclimate.org)