from The American Heritage® Dictionary of the English Language, 4th Edition
- 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A speech sound that is produced without turbulent airflow in the vocal tract; the generic term of vowel, approximant, nasal consonant, etc.
sonor(ous) + -ant.(American Heritage® Dictionary of the English Language, Fourth Edition)