Spectral Here

The ability of a sensor (like a camera) to distinguish between different wavelengths of light, such as infrared or ultraviolet, beyond what the human eye can see.

In technical contexts, "spectral" refers to the distribution of a signal's properties, like energy or power, across different frequencies. Spectral

The specific mix of wavelengths in a light source. This is used in astronomy to determine what stars are made of or how fast they are moving. The ability of a sensor (like a camera)