Noun
master clock (plural master clocks)
A precision clock that provides timing signals to synchronise slave clocks as part of a clock network.
Clocks are, with varying degrees of accuracy, phase-locked (time-locked) to a master clock. Source: Internet
Slave clock synchronization is usually achieved by phase -locking the slave clock signal to a signal received from the master clock. Source: Internet
The human body has a master clock in the SCN and also peripheral oscillators in tissues. Source: Internet
The master clock (bottom center), controlled by a temperature-compensated mercury pendulum, is wired to slave clocks throughout the building. Source: Internet
The other standard time and frequency reference for the U.S. Government is the National Institute of Standards and Technology (NIST) master clock. Source: Internet
There may be a master clock able to communicate with all parts of the embryo that controls the course of events, or timing may depend simply on local causal sequences of events. Source: Internet