subvocalization


sub·vo·cal·ize

S0858175 (sŭb-vō′kə-līz′)tr. & intr.v. sub·vo·cal·ized, sub·vo·cal·iz·ing, sub·vo·cal·iz·es To articulate or engage in articulation by moving the lips or other speech organs without making audible sounds, as in reading to oneself.
sub·vo′cal·i·za′tion (-kə-lĭ-zā′shən) n.sub·vo′cal·iz′er n.

subvocalization

(sʌbˌvəʊkəlaɪˈzeɪʃən) or

subvocalisation

n (Linguistics) the act or process of producing subvocal speech