perturbation
noun/ˌpɜrtərˈbeɪʃən/
Frequency rank: #17,769 of 20,003 in the WORDED list (wordfreq data)
Meaning
a state of anxiety or mental unease; a small disturbance or deviation from a normal or expected state.
Example sentence
The scientist noticed a slight perturbation in the satellite's orbit and began investigating its cause.
Synonyms & related words
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