Definition of "nonvocal" [non•vo•cal]

• Not vocal; silent; not using one's voice. (adjective)

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• "To test out a correlation between intelligence and preferring the nonvocal classics, researchers drew on the 1993 edition of the General Social Survey, conducted by the National Opinion Research Center."
• "Using nonvocal cues to gain students' attention, whether that's raising a hand, clapping or ringing a bell."
• "Rather we argue that the “language brain” emerged from an intermediate and somewhat less primitive specialization of the left hemisphere—namely, its specialization for routine communication, both vocal and nonvocal."