1

countersink

verb coun·ter·sink \ ˈkau̇n-tər-ˌsiŋk \

Definition of countersink

countersunk play \ˈkau̇n-tər-ˌsəŋk\; countersinking
1 : to make a countersink on (a hole)
2 : to set the head of (something, such as a screw) at or below the surface

First Known Use of countersink

1816

in the meaning defined at sense 1

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2

countersink

noun

Definition of countersink

1 : a bit or drill for making a funnel-shaped enlargement at the outer end of a drilled hole
2 : the enlargement made by a countersink

Illustration of countersink

illustration of countersink

First Known Use of countersink

1816

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

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