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

Example Sentences

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

From Science Daily • Feb. 1, 2026

If that test is positive, a follow-up PCR test checks for viral RNA to confirm an active infection.

From Science Daily • Dec. 11, 2025

"The TGA is aware that many companies responsible for sunscreens manufactured using this base formulation relied on testing by PCR Corp to support their SPF claims."

From BBC • Sep. 30, 2025

For viruses, the most common diagnostic tool is a PCR test.

From BBC • Apr. 29, 2025

Party Training In early 1970 the PCR carried out a major reorganization of its primary institution for the training of leading party workers, the Stefan Gheorghiu Party Academy.

From Area Handbook for Romania by Bernier, Donald W.