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addendum circle

noun

Definition of addendum circle 

: a circle touching the outermost points of the teeth of a circular gear wheel — see pitch line

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First Known Use of addendum circle

1870, in the meaning defined above

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Dictionary Entries near addendum circle

added value

addend

addendum

addendum circle

adder

adder's-fern

adder's-flower

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The first known use of addendum circle was in 1870

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