English

Verb

keyholing

1. present participle of keyhole

Noun

keyholing ‎(uncountable)

1. (firearms) The tendency of a bullet fired down an excessively large barrel to wobble in flight and leave a keyhole-shaped puncture in the target.
2. (lasers) The formation of a transient column of vapor or plasma when using high energy beams, such as lasers, for welding or cutting.