sub·vo·cal (sŭb-vō'kəl) adj. Characterized by movement of the lips or other speech organs without making audible sounds: subvocal speech. sub·vo'cal·ly adv.
Main Entry: sub·vo·cal Pronunciation: -'vO-k&l Function: adjective : characterized by the occurrence in the mind of words in speech orderwith or without inaudible articulation of the speech organs —sub·vo·cal·ly/-k&-lE/adverb