- countersank
- 'coun·ter·sink || 'kaʊntərsɪŋk v. make (the head of a bolt, nail, etc.) flush or level with a surface
English contemporary dictionary. 2014.
countersank
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countersink — v., n. /kown teuhr singk /; v. also /kown teuhr singk /, v., countersank, countersunk, countersinking, n. v.t. 1. to enlarge the upper part of (a cavity), esp. by chamfering, to receive the cone shaped head of a screw, bolt, etc. 2. to cause (the … Universalium
