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

The bill calls for pairing at least three minutes of lifelike animation or high-definition ultrasound footage with information about how quickly fetuses’ vital organs develop. —Matthew Kelly, Kansas City Star, 27 Mar. 2025

Fiber is capable of achieving one gigabit upload and download speeds, enough to stream high-definition videos on multiple devices, transmit large files and run nearly a dozen smart home devices at once without any buffering. —Bloomberg, Oc Register, 25 Mar. 2025

If this storyline feels familiar, that’s because RHOA has long been the place where high-profile marriages come to air out their grievances in high-definition. —Shelby Stewart, Essence, 24 Mar. 2025

Wednesdays, you’re automatically connected to the high-definition Channel 431 in the Miami area. —Howard Cohen, Miami Herald, 22 Mar. 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