1. a person who dials a telephone number
2. a device or mechanism used for dialing telephone numbers
3. a computer program that automatically dials telephone numbers
Usage: computing

Examples

• The dialer carefully entered the long-distance number.
• She worked as a dialer at the telemarketing company.
• The old rotary phone had a circular dialer with numbered holes.
• The automatic dialer called hundreds of customers each hour.
• He installed dialer software to make conference calls easier.
• The dialer on her smartphone wasn’t working properly.