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oscillation
/ˌɒsɪˈleɪʃən/
movement back and forth
The oscillation of the pendulum was steady and predictable.
The pendulum moved back and forth in a regular, repeating motion.
technical
A movement back and forth at a regular speed.
In physics, oscillation refers to the repetitive variation of a quantity over time.
Physics uses oscillation to describe how quantities like position or voltage change repeatedly.
Often used in contexts involving waves, pendulums, or electronic signals.
formal
A state of indecision between two conflicting options or emotions.
Her oscillation between hope and despair made decision-making difficult.
She struggled to choose because she kept shifting between feeling hopeful and feeling despair.
Can describe emotional or mental uncertainty.
Collocations
oscillation frequencythe rate at which something oscillatesdamped oscillationa gradually decreasing oscillationharmonic oscillationa smooth, repeating oscillation
Pro Tip
Distinguish from vibration
Oscillation implies a regular, often smooth movement back and forth, while vibration is typically faster and more mechanical. For example, a pendulum oscillates, but a guitar string vibrates.
Gold Rule
Use in technical contexts
In physics or engineering, oscillation describes a repeating motion, such as a pendulum or an electrical signal. Example: 'The oscillation of the circuit was measured at 50 Hz.'
Word Origin
From Latin *oscillatio(n-)*, meaning 'a swinging', derived from *oscillare* 'to swing', related to *oscillum* 'a swing' or 'little face' (originally a mask hung on trees to ward off evil spirits).
Usage Notes
Common in technical fields like physics and engineering, but also used metaphorically in psychology to describe indecision. Avoid confusing with 'vibration,' which implies a more rapid or mechanical movement.
Word Breakdown
oscil-
to swing
root-lation
action or process
suffixEnglish Dictionary