1.
radio-controlled clock; atomic clock (consumer)
A clock or watch that automatically synchronizes its time by receiving radio signals from a time standard transmitter, ensuring high accuracy.
A compound of 電波 (radio waves) + 時計 (clock/watch). In Japan, these clocks receive signals from the JJY transmitter operated by NICT (National Institute of Information and Communications Technology). They are extremely popular in Japan and are a common gift item.
Common collocations
- 電波時計の腕時計: radio-controlled wristwatch
- 電波時計の掛け時計: radio-controlled wall clock
- 電波を受信する: to receive the radio signal