Definition of Woodruff key in English:

Woodruff key

Syllabification: Wood·ruff key
Pronunciation: /ˈwo͝odrəf ˌkē
 
/

noun

A key whose cross section is part circular, to fit into a curved keyway in a shaft, and part rectangular, used chiefly in machinery.

Origin

late 19th century: named after the Woodruff Manufacturing Company, Hartford, Connecticut.

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