The AI-powered English dictionary
plural countersinks
a cylindrical recess, typically machined around a hole to admit a screw so that it sits flush with a surface. examples
third-person singular simple present countersinks, present participle countersinking, simple past countersank or countersunk, past participle countersunk
(transitive) To create such a conical recess. examples
(transitive, intransitive) To cause to sink even with or below the surface. quotations examples
I countersank into the locust just enough to make the nailhead flush.
2010, Larry Pardey, Details of Classic Boat Construction, pages 7-30