high-definition

adjective

high-def·​i·​ni·​tion ˈhī-ˌde-fə-ˈni-shən 

: being or relating to an often digital television system that has either 720 or 1080 scan lines per frame and a wide-screen format

high definition noun

a program broadcast in high definition

Examples of high-definition in a Sentence

Recent Examples on the Web

Until someone produces high-definition videos of flying saucers and little green men, the evidence might not be extraordinary enough to demand such extraordinary explanations. —Matthew Hutson, New Yorker, 7 Sep. 2025

On view from September 18 to December 18, 2025, this presentation marks a defining chapter in Rampleman’s six-year project using high-definition video to document over 370 performances of more than 200 drag artists. —Chadd Scott, Forbes.com, 30 Aug. 2025

Slow-motion, high-definition cameras have put a new emphasis on MLB baserunners briefly coming off a base, for instance. —Jacob Feldman, Sportico.com, 26 Aug. 2025

Equipped with high-definition cameras, robotic arms, sonar systems, and sensors, Haiqin showed strong results in navigation and positioning. —Sujita Sinha, Interesting Engineering, 25 Aug. 2025

Word History

First Known Use

1981, in the meaning defined above

Rhymes for high-definition

• academician
• cycloaddition
• decomposition
• diagnostician
• disinhibition
• indisposition
• interposition
• juxtaposition
• mathematician
• metacognition
• metaphysician
• neurotransmission

Kids Definition

high-definition

adjective

: relating to or being a television with a more detailed and sharper picture than usual