countersinking
present participle of countersink
Source: Wiktionary
Coun"ter*sink` (koun"tr-sk`; 277), v. t. [imp. & p. p. Countersunk (- s; p. pr. & vb. n. Countersinking.]
1. To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part; as, to countersink a hole for a screw.
2. To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork.
Coun"ter*sink`, n.
1. An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt.
Note: In the United States a flaring cavity formed by chamfering the edges of a round hole is called a countersink, while a cylindrical flat-bottomed enlargement of the mouth of the hole is usually called a conterbore.
2. A drill or cutting tool for countersinking holes.
Source: Webster’s Unabridged Dictionary 1913 Edition
12 January 2025
(noun) (psychology) an automatic pattern of behavior in reaction to a specific situation; may be inherited or acquired through frequent repetition; “owls have nocturnal habits”; “she had a habit twirling the ends of her hair”; “long use had hardened him to it”
The world’s most expensive coffee costs more than US$700 per kilogram. Asian palm civet – a cat-like creature in Indonesia, eats fruits, including select coffee cherries. It excretes partially digested seeds that produce a smooth, less acidic brew of coffee called kopi luwak.
