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radio wave
This term refers specifically to the long-wavelength end of the electromagnetic spectrum. In technical discourse, it is often used interchangeably with radio frequency (RF) signals, though "wave" emphasizes the physical propagation through space while "frequency" emphasizes the rate of oscillation.
Because it describes a physical phenomenon that can be measured in individual instances or as a general medium, it is treated as a countable noun. It is commonly paired with adjectives describing its behavior, such as "short-wave" or "long-wave," to specify the range of the transmission.
Meanings
Examples
Radio waves travel at the speed of light through a vacuum.
I wonder if the radio wave is being blocked by these mountains.
The device converts electrical signals into a radio wave for transmission.
The device converts electrical signals into a radio wave for transmission.
Can you hear the static? The radio wave must be weak here.
Certain materials can reflect a radio wave back toward the source.
The spy used a modified radio wave to send encrypted messages.
A radio wave can pass through walls but is stopped by thick metal.
We need to adjust the antenna to better receive the radio wave.