set, countersink
(verb) insert (a nail or screw below the surface, as into a countersink)
Source: WordNet® 3.1
countersunk
past participle of countersink
countersunk (not comparable)
(of a bolt or screw) That has a flat conical top allowing it to be inserted flush with a surface
Source: Wiktionary
Coun"ter*sunk` (-snk`), p. p. & a. from Countersink.
1. Chamfered at the top; -- said of a hole.
2. Sunk into a chamfer; as, a countersunk bolt.
3. Beveled on the lower side, so as to fit a chamfered countersink; as, a countersunk nailhead.
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
8 January 2025
(noun) Eurasian maple tree with pale grey bark that peels in flakes like that of a sycamore tree; leaves with five ovate lobes yellow in autumn
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
