Definition of oscillation in English:



  • 1Movement back and forth at a regular speed.

    ‘the natural oscillation of a spring’
    [count noun] ‘the oscillations of a pendulum’
    • ‘The lack of damping property also caused oscillations of relatively high frequency.’
    • ‘This continues, and the oscillations build with every roll.’
    • ‘In this case of applied displacement, the initial velocity was not equal to zero at the start of free oscillations.’
    • ‘The oscillations began to dampen out after about three seconds, and once again I was in control of the aircraft.’
    • ‘The oscillations induced by our rudder corrections got worse with every application, regardless of how smooth we tried to be.’
    • ‘The more highly accurate quartz clocks followed and depended on the oscillation of quartz crystal for control.’
    • ‘The progression of the mechanical oscillation itself is conditioned by the grain compatibility of harmonics.’
    • ‘The oscillations increased to 90 degrees, the flight films showing the vehicle swinging madly from side to side.’
    • ‘If the oscillations are not damped out, they could break the fragile lines of other suspended weights and become amplified.’
    • ‘In such case, the valves should be closed just enough to stop oscillation.’
    • ‘The mechanical oscillation is driven by the energy of the chemical reaction shown in Fig.1.’
    • ‘During that time, the bridge had been engaging in a wide variety of different large-amplitude vertical oscillations, without the slightest sign of any torsional motion.’
    • ‘The aircraft began a series of violent oscillations at 60 feet that would frighten even the dumbest pilot.’
    • ‘The hammer area of rocker arms is hardened progressively or by oscillation.’
    • ‘Acoustic cavitation involves the creation and oscillation of gas bubbles in a liquid.’
    • ‘Because the oscillations of different filament pairs have different phases, oscillatory motion is not normally observable on the scale of a whole muscle fiber in steady conditions.’
    • ‘The eddies set up an oscillation that may be reinforced by the natural frequency of the structure.’
    • ‘The rest function as insulators, or dampers of mechanical oscillation.’
    • ‘It has bristles that oscillate at 7000 oscillations per minute.’
    • ‘Four conspicuous jerks forwards, with slower retreats, were seen on one occasion to occur in exactly one minute, besides some minor oscillations.’
    swinging, swing, swaying, swinging from side to side, swinging backwards and forwards, swinging back and forth, swinging to and fro, vibration
    wavering, fluctuation, see-sawing, vacillation, yo-yoing, variation
    View synonyms
    1. 1.1Variation or fluctuation between two extremes of opinion, action, or quality.
      ‘the plot's oscillation between bleak and comic elements’
      • ‘That is where his oscillations are most unsettling.’
      • ‘The fact is, the wild oscillations in our business life will continue to get wilder and wilder, probably forever.’
      • ‘Interplay is the appropriate word to describe his unusual oscillation between reality and imagination.’
      • ‘These oscillations are the real moral hazard.’
      • ‘During the revolution, inevitable oscillations will occur in the army, an internal struggle will take place.’
  • 2Physics
    Regular variation in magnitude or position around a central point.

    • ‘There are many component failures in the transceiver which might produce the right amount of gain change for oscillations.’
    • ‘Recently, researchers harnessed the spins of electrons to create oscillations which they said suggested a new type of electronic clock.’
    • ‘In this study the signal roughness is of secondary interest whereas signal oscillations and their frequencies are of primary interest.’
    • ‘If it were so, then the short-period oscillations should be confined to only one frequency.’
    • ‘To characterize the frequency domain of these oscillations, power spectral analyses were performed.’