| alarm clock |
a clock with a bell or buzzer that can be set to sound at a chosen time. |
| analog clock |
a clock that displays the time using a long hand to show the hour and a short hand to show the minutes. |
| around the clock |
through all twenty-four hours; without stopping; tirelessly. |
| atomic clock |
an extremely accurate timekeeping device regulated by the reliably constant frequency at which atoms of certain highly reactive substances absorb or emit electromagnetic radiation. |
| body clock |
(non-technical) the internal mechanisms that regulate bodily functions; Circadian rhythm. [2 definitions] |
| clock radio |
a radio with a built-in clock that can be set to turn the radio on at a given time. |
| cuckoo clock |
a clock that conceals a mechanical bird that pops out of a little door to announce the hour with sounds resembling the cry of a cuckoo. |
| digital clock |
a clock that displays the time as digits rather than by hands on a dial. |
| grandfather clock |
a pendulum clock in a tall, narrow cabinet. |
| punch a time clock |
to work at a job that requires strict adherence to a certain number of hours to be worked. |
| round-the-clock |
continuous throughout the day and night. |
| shot clock |
in basketball, a clock that indicates the amount of time within which a team must attempt to score a basket. |
| time clock |
a clock that records the exact time on a card, used by employees to record the time of their arrival at and departure from work. |
| water clock |
any of various devices that measure time by the flow of water, esp. a clepsydra. |