wavelength

Word parts

wave + length

Pronunciation

• (UK) IPA ^(key): /ˈweɪvlɛŋ(k)θ/
• (US) IPA ^(key): /ˈweɪvˌlɛŋ(k)θ/

• Audio (US)

  (file)

Noun

Singular wavelength

Plural wavelengths

1. (countable) The physical length of a wave, especially an electromagnetic wave. For electromagnetic waves, the wavelength is approximately the speed of light divided by frequency.