Chyron

Noun: A caption superimposed over usually the lower part of a video image. In modern usage it is often referred to as the crawl.

Example: “The moving chryon has more appeal than the fixed one.”

Pronunciation: kai·raan click on this link and Google will tell you how they pronounce chyron.

Chyron Corporation, that still exists, was the first to create captions that could be superimposed on video images. They didn’t capture the word, like Xerox or Kleenex, we now use either crawl or caption.

Photo is a sunrise from my balcony looking SE toward the San Tan hills.