terahertz

noun

tera·hertz ˈter-ə-ˌhərts

-ˌherts

plural terahertz

: a unit of frequency equal to one trillion hertz

Visible light occupies the neighborhood of 300 terahertz, which is 300 x 1012 cycles per second.—Dave Doody

Terahertz waves also occupy a unique window of the electromagnetic spectrum where a large number of molecules emit and absorb radiation.—Michael C. Wanke et al.

Examples of terahertz in a Sentence

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Their solution was a terahertz split-ring resonator, a structure that confines and reshapes electromagnetic fields. — Rupendra Brahambhatt, Interesting Engineering, 22 Aug. 2026 See All Example Sentences for terahertz

Word History

Etymology

tera- + hertz

First Known Use

1964, in the meaning defined above

Time Traveler

The first known use of terahertz was in 1964

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teraglin

terahertz

terai

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Style

“Terahertz.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/terahertz. Accessed 1 Sep. 2026.

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terahertz

noun

Examples of terahertz in a Sentence

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