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countersink

noun

Etymology

From counter- + sink.

  1. derived from *sengʷ-✻
  2. derived from *sinkwaną✻
  3. derived from *sinkwan✻
  4. derived from sincan
  5. inherited from synken
  6. prefixed as countersink — “counter + sink”

Definitions

  1. A conical recess, typically machined at the mouth of a hole to admit a screw (with a…

    A conical recess, typically machined at the mouth of a hole to admit a screw (with a matching taper) so that the screw sits flush with a surface.

  2. The cutter used to cut such a recess. (Also used, at less depth, for…

    The cutter used to cut such a recess. (Also used, at less depth, for edge-breaking/deburring.)

    • Holonym: center drill (combined drill and countersink)

  3. To create such a conical recess.

    • to countersink a hole for a screw
  4. ›+ 1 more definition

    1. To cause to sink even with or below the surface.

      • to countersink a screw or bolt into woodwork
      • I countersank into the locust just enough to make the nailhead flush.

The neighborhood

Derived

back-countersink, countersinker

Vish — recursive loop

No curated loop yet for countersink. Loops are being traced one word at a time while the ingestion pipeline matures.

sense glosses and etymology drawn from English Wiktionary · source · CC-BY-SA