1. of, relating to, or existing in the period before the widespread adoption or invention of radio technology
Usage: historical; often used in academic or historical contexts

Examples

• Preradio communication relied heavily on telegraph and telephone systems.
• The preradio era saw newspapers as the dominant mass medium.
• Historians study preradio entertainment methods to understand early 20th-century culture.
• Preradio advertising techniques were quite different from modern approaches.
• The preradio period ended around the 1920s when radio became commercially viable.