automatic door
nounUK /ˌɔːtəˈmætɪk dɔː/
US /ˌɔːtəˈmætɪk dɔːr/
A door that opens by itself when someone comes near.
The automatic door slid open as we walked into the store.
OTHER MEANINGS
2. A door operated by a push button or card reader rather than by hand.
The automatic door at the hospital opens when you press the green button.
3. A door that closes on its own using a spring or motor.
The automatic door swung shut behind the delivery driver.
4. A door system used for wheelchair access and safety.
The new library installed an automatic door so everyone can get in easily.