Noun
keyhole (plural keyholes)
- The hole in a lock where the key is inserted and turns.
- Any small opening resembling the hole for a key in shape or function.
- A circle cut out of a garment as a decorative effect, typically at the front or back neckline of a dress.
- (carpentry) A hole or excavation in beams intended to be joined together, to receive the key that fastens them.
- (engineering) A mortise for a key or cotter.
- (lasers) A transient column of vapor or plasma formed when using high energy beams, such as lasers, for welding or cutting.
- laser keyhole welding
- keyhole plasma
- (metallurgy) A welding method in which a hole forms in the surface immediately ahead of the puddle in the direction of welding. The hole is filled as the weld progresses.
- (basketball) The free-throw lane together with the circle surrounding the free-throw line; key.
- (astronomy) A gravitational keyhole.
- French: trou de la serrure
- German: Schlüsselloch
- Italian: toppa, buco della serratura
- Portuguese: fechadura, tranca
- Russian: замо́чная сква́жина
- Spanish: ojo
keyhole (keyholes, present participle keyholing; past and past participle keyholed)
- (ordnance) To strike a target after wobbling in flight so that the long axis of the bullet does not follow the line of flight; typically due to insufficient spin resulting from the rifling in the barrel.
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