Nasal labial–velar approximant
The nasal labial–velar approximant is a type of consonantal sound used in some languages. The symbol in the International Phonetic Alphabet that represents this sound is , that is, a w with a tilde. The equivalent X-SAMPA symbol is codice_1. The nasal approximants and may also be called nasal glides. In some languages like Portuguese, they form a second element of nasal diphthongs. Features. Features of the nasal labial–velar approximant: