Atomic clock and Timer

Atomic clock noun - A timepiece that derives its time scale from the vibration of atoms or molecules.

Timer and atomic clock are semantically related. In some cases you can use "Timer" instead a noun phrase "Atomic clock".

Timer noun - A device to measure time.

Atomic clock and timer are semantically related. You can use "Atomic clock" instead a noun "Timer".

Nearby Words: time, timed, timing, timepiece, timekeeper