PCR 
PCR
Definition
PCR
polymerase chain reaction
PCR
Law Definition
abbr
Stands for polymerase
chain reaction, the newest (at this writing) method of DNA analysis. Using PCR technique, it is possible to
analyze a biological specimen that is one-tenth the size of that required for
the older RFLP method. It also
gives quicker results, but the analysis is not as discriminating as RFLP.
PCR (Peak Cell Rate)
Telecom Definition
In asynchronous transfer mode (ATM), a traffic parameter defined as the maximum number of cells per second, in a burst, that the network agrees to accept and transfer for a given user network interface (UNI). Excess cells may be discarded by the ingress switch, or marked as eligible for discard. For constant bit rate (CBR) service, the PCR is the guaranteed CBR for the virtual circuit. Enforcement of the PCR enables the network to allocate sufficient resources to ensure that the quality of service (QoS) parameters are met. See also ATM, CBR, cell, QoS, traffic parameter, UNI, and virtual circuit.
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