Barred lambda

Modified letter of the Greek alphabet

The barred lambda, Ƛƛ, is a modified letter of the Greek alphabet. It is used by the Salishan and Wakashan languages in Canada. It is also used in Americanist phonetic notation, where it is also known as running man, to transcribe. In physics, it is used to represent the angular wavelength, i.e. the wavelength (λ) divided by 2π (τ), which corresponds to the length taken up by one radian of the wave.

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