plural perturbations
1
technical
: a change in the normal state or regular movement of something
a perturbation in the planet's orbit
gravitational perturbation
2
formal
: the state of being worried or upset
mental/emotional perturbation
Cite this Entry
“Perturbation.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/perturbation. Accessed 16 Jun. 2026.
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