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volvelle

[ vol-vel ]
/ ˈvɒl vɛl /
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noun Astronomy.

a medieval instrument consisting of a series of concentric rotating disks, used to compute the phases of the moon and its position in relation to that of the sun.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of volvelle

1400–50; late Middle English <Medieval Latin volvella, equivalent to Latin volv(ere) to turn + -ella-elle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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