from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Characterized by movement of the lips or other speech organs without making audible sounds: subvocal speech.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining words or statements formed in thought and expressed inwardly but not, or not yet, uttered aloud.
- adj. Of or pertaining to imperfectly articulated speech that is inaudible or barely audible; subtonic.
from the GNU version of the Collaborative International Dictionary of English
- Same as subtonic.
Sorry, no etymologies found.