vortex ring
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noun
a stable perturbation in a fluid that takes the form of a torus in which the flow rotates in the section of the torus so that the pressure difference between the inside and outside of the torus balances body forces. The best-known vortex ring is a smoke ring
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The rainy weather could not ________ my elated spirits on my graduation day.
Words nearby vortex ring
-vorous, vorspiel, Vorster, vortex, vortex drag, vortex ring, vortex shedding, vortex street, vortex vein, vortical, vorticella
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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