Definitions

1. adjective

not requiring or involving physical contact

“The company introduced a touchless payment system at all its stores.”

2. adjective

operating or activated by a sensor, especially one that detects movement, to minimize contact between people and objects

“The new office building features touchless door handles and faucets for hygiene.”

3. noun

a system or device that does not require physical contact

“The company is developing a touchless thermostat that can be controlled remotely.”