PCR

British  

abbreviation

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

---

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.

---

Discover More

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

All companies using the problematic base formula and the PCR lab have also been contacted by the TGA, it said.

From BBC • Sep. 30, 2025

This part of the inquiry will also look at the purchase of ventilators to help patients breathe, as well as millions of lateral flow and PCR tests.

From BBC • Mar. 2, 2025

The Constitution does declare, however, that the right to nominate candidates belongs to the PCR, as well as to all labor unions, cooperatives, youth and women's leagues, cultural associations, and other mass organizations.

From Area Handbook for Romania by Bernier, Donald W.