countersink
verb (used with object)
to enlarge the upper part of (a cavity), especially by chamfering, to receive the cone-shaped head of a screw, bolt, etc.
countersunk
-
past participleof countersink.past participle
A verb form used in perfect and passive verb constructions and that can also function as a modifier.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
We also like that it comes with countersunk washers and brass screws, which give this holder a streamlined look when hung.
From Slate ● Jan. 4, 2019
The chocks in which these boats rest are provided with gunmetal wheels, which run in transverse gunmetal tracks, countersunk on the deck.
From Scientific American ● Apr. 11, 2012
Before the last finishing nail is driven and countersunk, Judith has earned the admiration and respect of the crew by swinging her own hammer.
From Time Magazine Archive
Smith simply used 2"-long, 1?4-20 flathead brass bolts with nuts and washers on the inside, countersunk every 10" to attach the ground strip to the hull bottom.
From Time Magazine Archive
Besides the countersunk nozzle, Mr. Caton showed off his new design for attaching the fins to the casement.
From "October Sky" by Homer Hickam
