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7 Essential Words of Fall

spiral spring

noun
1.
a form of spring consisting of a wire coiled in a helix.
Origin
1680-1690
1680-90
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for spiral spring
  • There is also a unit counting disc and a spiral spring calibrator.

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Word Value for spiral

8
10
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