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

Another has mild symptoms and is waiting for the results of a PCR test.

From MarketWatch • May 11, 2026

One of 17 American citizens repatriated from the ship tested "mildly PCR positive" for the virus while another had "mild symptoms", the US Department of Health and Human Services said on May 10.

From Barron's • May 11, 2026

Despite these signs, laboratory testing using PCR and serology ruled out Nipah virus.

From Science Daily • Feb. 1, 2026

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

From BBC • Sep. 30, 2025

In December 1967 PCR General Secretary Ceausescu was elected president of the Council of State by the Grand National Assembly and, by virtue of this position, became the head of state.

From Area Handbook for Romania by Bernier, Donald W.