COUNTERBORING
Verb
counterboring
present participle of counterbore
Noun
counterboring (plural counterborings)
A counterbore. (cylindrical recess)
Source: Wiktionary
COUNTERBORE
Coun"ter*bore` (-br`), n.
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.
Coun`ter*bore" (koun`tr-br"), v. t.
Definition: To form a counterbore in, by boring, turning, or drilling; to enlarge, as a hole, by means of a counterbore.
Source: Webster’s Unabridged Dictionary 1913 Edition
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BRIGHT
(adjective) made smooth and bright by or as if by rubbing; reflecting a sheen or glow; “bright silver candlesticks”; “a burnished brass knocker”; “she brushed her hair until it fell in lustrous auburn waves”; “rows of shining glasses”; “shiny black patents”
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