countersink (n.)

  1. a hole (usually in wood) with the top part enlarged so that a screw or bolt will fit into it and lie below the surface

  2. a bit for enlarging the upper part of a hole

    [ Syn: counterbore , countersink bit ]

    countersink (v.)

  1. insert (a nail or screw below the surface, as into a countersink)

    [ Syn: set ]

The dictionary is based on the WordNet Electronic Lexical Database.
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