volute spring

noun

a coil spring, conical in shape, extending in the direction of the axis of the coil.

Origin:
1860–65

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet

volute spring
noun
a spring in the shape of a coil [syn: coil spring]

WordNet® 3.0, © 2006 by Princeton University.
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00:10

Volute spring is always a great word to know.

So is lollapalooza. Does it mean:

a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.

an extraordinary or unusual thing, person, or event; an exceptional example or instance.

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