IPA: /ˈtɛrəˌhɜrts/
KK: /tɛrəˈhɜrts/
A unit of frequency equal to one trillion cycles per second.
The terahertz range is used in various scientific applications, including imaging and spectroscopy.
**Terahertz** → It is formed from "tera-" (from Greek "teras", meaning monster or marvel, used in the metric system to denote a factor of 10^12) and "hertz" (from the name of Heinrich Hertz, a German physicist, meaning cycles per second). The word "terahertz" refers to a frequency of one trillion cycles per second.
Think of 'tera-' as a prefix meaning a trillion and 'hertz' as cycles per second, so terahertz describes a frequency that is a trillion cycles in one second.
No commonly confused words.