Definition of "narrowband" []

• Describing communication systems with a smaller bandwidth than wideband. (adjective)

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• "My work with dye lasers made me aware of the exciting developments in narrowband dye lasers and their applications to atomic spectroscopy being done by Ted"
• "But the market for dial-up services, sometimes derisively called "narrowband," continues to shrink."
• "Traditional phones used with the "narrowband" PSTN (public switched telephone network) sample at a mere 8 KHz."