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TAKE THE QUIZcrown wheel
noun
: a crown gear of light construction: such as
a
: the crown-shaped horizontal escape wheel of a verge escapement timepiece
b
: a contrate wheel in the winding mechanism of a watch that drives the ratchet wheel and is itself driven by the winding-stem pinion
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Merriam-Webster unabridged
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- Often used to describe “the march of time,” what does inexorable mean?


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