high definition

noun

1. a system for screen display of images that are sharper and more detailed than normal, having many more than the standard number of scanning lines per frame: : HD high-definition television.

   Most TV shows are available in high definition.

2. an audio system that reproduces sound with a high degree of accuracy and clarity: : HD

   music recordings that use high definition.

3. an optical system that produces very sharp images. : HD

Other Words From

• high-defi·nition adjective

Word History and Origins

Origin of high definition¹

First recorded in 1980–85

Example Sentences

Sir David's programmes have gone from being shot on 16mm film stock with clockwork cameras in 1954 to ultra high definition 4k in the present day.

From BBC

Some 17 months later, Manthan was reborn in ultra high definition 4K.

From BBC

He pitched himself as the surgeon who had literally written the book on “High Definition Liposuction” — which he sold for $49.95.

From Los Angeles Times

The screen-filling presentation looks good in high definition but really needed an ultra-high definition release to showcase the beauty of Venice with even a fireworks display, the 1940s period costuming and production design, and some of the spooky masks and interior palace visuals.

From Washington Times

By the time they jumped the border and Devin turned pro in Tijuana at 17 years young, all with Money Mayweather’s blessing, you could see him lighting up local competition in high definition.

From Los Angeles Times