oscillation

/,ɔsi'leiʃn/
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oscillation

A pendulum swings in a steady oscillation.

Definition
  1. Noun:
    • A single complete execution of a periodically repeated phenomenon: The act of moving or swinging back and forth in a regular rhythm. This can refer to physical movement or to a recurring process.
    • (Physics) A regular periodic variation in value about a mean: A repeated fluctuation in a measurable quantity, such as voltage or position, around a central or average value.
    • The process of oscillating between states: The act of wavering or vacillating between different opinions, choices, or conditions.
Usage Examples
  • Noun:
    • The gentle oscillation of the pendulum was hypnotic. (This describes its regular swinging motion.)
    • In electronics, we measure the frequency of an electrical oscillation. (This refers to a periodic variation in current or voltage.)
    • Her constant oscillation between optimism and pessimism was exhausting. (This describes wavering between two mental states.)
Advanced Usage
  • "Damped oscillation": An oscillation that decreases in amplitude over time due to energy loss.

    • The door's swing was a damped oscillation, gradually coming to a stop.
  • "Forced oscillation": An oscillation maintained by an external periodic force.

    • The bridge experienced forced oscillations from the rhythmic marching of the soldiers.
Variants and Related Words
  • Oscillate (verb): To swing or move back and forth regularly; to vary between opposing beliefs or feelings.

    • The fan oscillates to cool the entire room.
    • He tends to oscillate between confidence and doubt.
  • Oscillator (noun): A device or system that produces oscillations.

    • A quartz crystal is a common oscillator in watches.
  • Oscillatory (adjective): Having the nature of or characterized by oscillation.

    • The device exhibited an oscillatory motion.
Synonyms
  • Swinging: Moving back and forth.
  • Vibration: Rapid oscillation.
  • Fluctuation: An irregular rising and falling, often used for values or states.
  • Vacillation: Wavering in decision or opinion.
Related Phrases
  • Period of oscillation: The time taken for one complete cycle of oscillation.

    • The period of oscillation for this pendulum is exactly two seconds.
  • Amplitude of oscillation: The maximum extent of a vibration or oscillation, measured from the position of equilibrium.

    • Increasing the energy increased the amplitude of the oscillation.
Related Idioms
  • To be in oscillation: To be in a state of regular back-and-forth movement or variation.

    • The market has been in constant oscillation for weeks.
  • To set into oscillation: To cause something to begin swinging or vibrating.

    • A gentle push set the chandelier into oscillation.
oscillation

A pendulum swings in a steady oscillation.

Noun
  1. a single complete execution of a periodically repeated phenomenon
    • a year constitutes a cycle of the seasons
  2. (physics) a regular periodic variation in value about a mean
  3. the process of oscillating between states