Meaning of CLOCK in English

CLOCK

n.

Pronunciation: ' kläk

Function: noun

Usage: often attrib

Etymology: Middle English clok, from Middle Dutch clocke bell, clock, from Old French or Medieval Latin; Old French dialect (Picard) cloque bell, from Medieval Latin clocca, of Celtic origin; akin to Middle Irish clocc bell

Date: 14th century

1 : a device other than a watch for indicating or measuring time commonly by means of hands moving on a dial broadly : any periodic system by which time is measured

2 : a registering device usually with a dial specifically : ODOMETER

3 : TIME CLOCK

4 : a synchronizing device (as in a computer) that produces pulses at regular intervals

5 : BIOLOGICAL CLOCK

– against the clock

1 : with or within a time constraint <working against the clock >

2 : with clocked speed rather than the order of finish as the criterion for placement <trial races against the clock >

– around the clock also round the clock

1 : continuously for 24 hours : day and night without cessation

2 : without relaxation and heedless of time

– kill the clock or run out the clock : to use up as much as possible of the playing time remaining in a game (as football) while retaining possession of the ball or puck especially to protect a lead

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.