tombstoning

Noun

tombstoning (uncountable)

1. (UK) The practice of jumping into the sea or similar body of water from a cliff or other high point such that the jumper enters the water vertically straight, like a tombstone.
2. The process of (automatically) initiating software sleep mode on an app.
3. An unwanted effect in the manufacture of electronic circuit boards, in which a component stands up on end instead of lying flat.

   Synonyms:

   tombstone effect, drawbridging, Manhattan effect

4. In page layout, putting articles side by side so that the headlines are adjacent (also referred to as bumping heads), or so that headline from one article is adjacent to the photo from another.
5. (Southern US) In highway driving, a blockage in traffic caused by a semi-trailer truck attempting to pass another with insufficient acceleration.
6. The practice of leaving a marker in a location where a digital record has been withdrawn, in order to signify that the record had previously existed.
7. A tombstone pattern on an electrocardiogram.