PCR

British  

abbreviation

1. polymerase chain reaction: a technique for rapidly producing many copies of a fragment of DNA for diagnostic or research purposes

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PCR Cultural  

1. A laboratory technique that can amplify the amount of DNA from a tiny sample to a large amount within just a few hours. Theoretically, PCR can take one molecule and produce measurable amounts of identical DNA in a short period of time. It is used in DNA fingerprinting and DNA sequencing.

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Discover More

An enzyme used in this process was originally found in bacteria in hot springs.

Example Sentences

In most clinical settings, the PCR sample must be sent to an outside laboratory, leading to delays that can stretch from several days to weeks.

From Science Daily • Dec. 11, 2025

"The TGA has also written to PCR Corp regarding its concerns and has not received a response."

From BBC • Sep. 30, 2025

At-home tests should still work to detect this variant, but PCR tests that doctors can order are more accurate.

From Salon • Jun. 11, 2025

According to UKHSA, some of the higher numbers may be attributable to the use of PCR multiplex technology, which can detect multiple gastrointestinal pathogens in one test.

From BBC • Jan. 30, 2025

Political authority was particularly concentrated in the hands of the general secretary of the PCR, Nicolae Ceausescu, who was also the head of state.

From Area Handbook for Romania by Bernier, Donald W.