uvular

In phonetics, a uvular sound is produced with the aid of the uvula, the fleshy extension at the back of the soft palate. Specifically, a uvular sound can be a trill formed by vibrating the uvula against the back of the tongue, or it can be created by friction between the back of the tongue and the uvula or velum. These sounds are distinct from velar sounds, which primarily involve the back of the tongue and the velum, though uvularization can be a secondary articulation in some consonants. While rare in many languages, uvular trills are found in some dialects of French.1234