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high definition

American  

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

    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 Word Forms

  • high-definition adjective

Etymology

Origin of high definition

First recorded in 1980–85

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This was beyond high definition; it was like watching reality.

From Literature

Emily loomed behind him in high definition like a circular saw looking for something to cut in two.

From Literature

But looking through her spotting scope, they appeared in high definition.

From Los Angeles Times

Tidied into high definition, they often appear restless.

From Los Angeles Times

He said the restaurant had installed high definition cameras "to boost security".

From BBC