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index plate

noun Machinery.

a plate perforated with rows of different numbers of equally spaced holes as a guide for indexing work.

Origin of index plate

First recorded in 1815–25

Words nearby index plate

index librorum prohibitorum, index mineral, index number, index of industrial production, index of refraction, index plate, index set, index-link, index-linked, indexation, indexical

Example sentences from the Web for index plate

This fuze is opened at the required number of seconds, by cutting close to the right of the mark on the index-plate.

Ordnance Instructions for the United States Navy. |Bureau of Ordnance, USN