Counterbore
Pronunciation : Coun"ter*bore` (-br`)
Part of Speech : n.
Definition : 1. A flat-bottomed cylindrical enlargement of the mouth of a hole, usually of slight depth, as for receiving a cylindrical screw head.
2. A kind of pin drill with the cutting edge or edges normal to the axis; -- used for enlarging a hole, or for forming a flat-bottomed recess at its mouth.
Source : Webster's Unabridged Dictionary, 1913
Pronunciation : Coun`ter*bore" (koun`tr-br")
Part of Speech : v.
Definition : Defn: To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore.
t.
Source : Webster's Unabridged Dictionary, 1913