Wavelength (noun)

1. The distance between consecutive crests of a wave, especially a light or sound wave.
2. A characteristic range or measurement within a particular field or activity.

Origin:

Late 19th century: from wave + length.

Examples:

1. The wavelength of light determines its color.
2. Radio waves have a longer wavelength than visible light.
3. The device measures the wavelength of light to identify the chemical.
4. The wavelength of sound affects its pitch.
5. The company operates in the microwave wavelength range.