ALL meanings of counterboring
coun·ter·bore
C c - noun counterboring a tool for enlarging a drilled hole for a portion of its length, as to permit sinking a screw head. 1
- noun counterboring the portion of the hole so enlarged. 1
- verb with object counterboring to enlarge (a drilled hole) along part of the length of the hole by drilling with a bit having a greater diameter. 1
- noun counterboring A counterbore. (cylindrical recess). 0
- verb counterboring present participle of counterbore. 0