An instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.
A time clock.
A source of regularly occurring pulses used to measure the passage of time, as in a computer.
Any of various devices that indicate measurement, such as a speedometer or a taximeter.
A biological clock.
Botany The downy flower head of a dandelion that has gone to seed.
To time, as with a stopwatch: clock a runner.
To register or record with a mechanical device: clocked the winds at 60 miles per hour.
To record working hours with a time clock: clocks in at 8 A.M. and out at 4 P.M.
around Throughout the entire 24 hours of the day; continuously.
clean (someone's) clock Slang To beat or defeat decisively: "Immense linemen declared their intentions to clean the clocks of opposing players” ( Russell Baker).
kill Sports To preserve a lead by maintaining possession of the ball or puck until playing time expires.
An embroidered or woven decoration on the side of a stocking or sock.