'''Dynamic instability''' may refer to any of several scientific phenomena:

*Aircraft dynamic modes, including aircraft dynamic instability *Atmospheric instability, in meteorology *Dynamic instability of microtubules, in biology *Firehose instability, in astrophysics *Flutter, in aeroelasticity, a branch of mechanics *Hydrodynamic instability, in fluid dynamics *Speed wobble, in mechanical engineering **Others in :Category:Fluid dynamic instabilities

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