extraverbal en · ADJ
Etymology
From extra- + verbal.
Meanings
-
(not-comparable) Outside of speech; by other means than speaking.
She can do it only by varying the messages transmitted through the extraverbal channels; through changes in muscular tension if she is holding the child, changes in facial set, gesture, or intonation.
1964, John Joseph Gumperz, Dell H. Hymes, The ethnography of communication, page 59: