1. devices that send out radio, television, or other electronic signals
2. people or things that pass something from one person or place to another

Examples

• The radio station installed new transmitters to improve signal quality.
• Cell phone towers contain powerful transmitters for mobile communication.
• The satellite’s transmitters broadcast signals across the continent.
• Television transmitters on the mountain provide coverage to the valley.
• Mosquitoes are transmitters of malaria and other diseases.
• The infected patients became unwitting transmitters of the virus.
• Wireless transmitters send data between computer networks.