pitch circle

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noun Machinery.

an imaginary circle within the profiles of the teeth of a gear, such that it rotates against a similar circle rotating at the same rate on a meshing gear.

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Also called pitch line.

Origin of pitch circle

First recorded in 1810–20

Words nearby pitch circle

pitchbend, pitch-black, pitchblende, pitch chain, pitch chisel, pitch circle, pitch-cone angle, pitch cylinder, pitch-dark, pitched battle, pitcher

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use pitch circle in a sentence

So, Linklater just won Best Director by the New York Film Critics Circle.
Coffee Talk with Ethan Hawke: On ‘Boyhood,’ Jennifer Lawrence, and Bill Clinton’s Urinal Exchange|Marlow Stern|December 27, 2014|DAILY BEAST
Julio had come full circle and had returned to Cuba as a tourist in his own country.
Cuban Hip-Hop Was Born in Alamar|Daniel Levin|December 26, 2014|DAILY BEAST
The girls ran in the same circle (Palmolive was also in the Flowers of Romance) and the group was looking for a guitarist.
A First Lady of Punk Rock Talks|Justin Jones|December 9, 2014|DAILY BEAST
The RSD Facebook page, and all the local RSD groups, known as “inner circle,” have been switched to private.
The Secret World of Pickup Artist Julien Blanc|Brandy Zadrozny|December 1, 2014|DAILY BEAST

Not before long, I think about four cops went up to the circle and just grabbed a few of the people from behind.
Dispatch From USC Protests over Ferguson|Maya Richard Craven|November 30, 2014|DAILY BEAST
Practise gliding in the form of inflection, or slide, from one extreme of pitch to another.
Expressive Voice Culture|Jessie Eldridge Southwick
What the ear hears is the fundamental pitch only; the overtones harmonize with the primary or fundamental tone, and enrich it.
Expressive Voice Culture|Jessie Eldridge Southwick
It will be remembered that pitch depends upon the rapidity of the sound waves or vibrations.
Expressive Voice Culture|Jessie Eldridge Southwick
Wharton and Louis had withdrawn their hands at the same instant they caught his eye; and the Duke turned into the circle.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter
It was the conversation of every circle; and discussed according to the dispositions, or views of the speakers.
The Pastor's Fire-side Vol. 3 of 4|Jane Porter

British Dictionary definitions for pitch circle

pitch circle

noun

an imaginary circle passing through the teeth of a gearwheel, concentric with the gearwheel, and having a radius that would enable it to be in contact with a similar circle around a mating gearwheel

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012