Voiceless uvular fricative

A voiceless uvular fricative is a type of consonantal sound that is used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is either a Latin or Greek-style chi, ⟨χ⟩. The historical IPA symbol for this sound was ⟨ᴚ⟩, a turned small capital R, and was officially changed to ⟨χ⟩ in 1928. In Americanist phonetic notation the sound is represented by ⟨x̣⟩ (ex with underdot), or sometimes by ⟨x̌⟩ (ex with caron). In broad transcription it may be transcribed ⟨x⟩, or ⟨r⟩ if rhotic.