son·o·rant 
(sŏnər-ənt, sōnər-, sə-nôr-)
(sŏnər-ənt, sōnər-, sə-nôr-)n.
A usually voiced speech sound characterized by relatively free air flow through the vocal tract and capable of being syllabic, as a vowel, liquid, or nasal.
[SONOR(OUS) + -ANT.]