An element of speech that serves as "a link in the chain of speech communication" (Bakhtin, 1986, p. 91).
Bakhtin, M M. "The Problem of Speech Genres." Speech Genres and Other Late Essays. Trans. Vern W McGee. Ed. Caryl Emerson and Michael Holquist. Austin, TX: U of TX P, 1986. 60-102. Print.