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dead center

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noun Machinery.

Also called dead point. (in a reciprocating engine) either of two positions at which the crank cannot be turned by the connecting rod, occurring at each end of a stroke when the crank and connecting rod are in the same line.
See under center (def. 19a).

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On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.

Origin of dead center

First recorded in 1870–75
dead-center, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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