(in radio) a frequency of 3–30 megahertz.
high-pitched, high-frequency, soprano, treble, falsetto, shrill, acute, sharp, piping, piercing, penetratingView synonyms
- ‘The tests involve measuring magnetic properties of molecules in the blood samples using high-frequency radio waves.’
- ‘There appeared to be no more need for high-frequency radio because of all the modern communications technologies.’
- ‘Customers can bring their battery-operated laptops and access the internet via high-frequency radio signals.’
- ‘We've added a high-frequency radio to improve communications.’
- ‘A recent study found evidence of high-frequency hearing loss in nearly one third of a cohort of college students.’
We take a look at several popular, though confusing, punctuation marks.