polymerase

American  

[pol-uh-muh-rays, -rayz] / ˈpɒl ə məˌreɪs, -ˌreɪz /

noun

Biochemistry.

1. any of several enzymes that catalyze the formation of a long-chain molecule by linking smaller molecular units, as nucleotides with nucleic acids.

---

polymerase British  

/ pəˈlɪməreɪz /

noun

1. any enzyme that catalyses the synthesis of a polymer, esp the synthesis of DNA or RNA

---

polymerase Scientific  

/ pə-lĭm′ə-rās′,pŏl′ə-mə-rās′ /

1. Any of various enzymes, such as DNA polymerase, RNA polymerase, or reverse transcriptase, that catalyze the formation of sequences of DNA or RNA using an existing strand of DNA or RNA as a template.

---

Etymology

Origin of polymerase

First recorded in 1955–60; polymer + -ase

---

Example Sentences

See Examples For:

polymerase

The 3D portion acts as an RNA polymerase, an enzyme that copies viral RNA so the virus can reproduce.

From Science Daily ● May 13, 2026

RNA polymerase II, also called Pol II, is the enzyme responsible for transcribing protein-coding genes in eukaryotic cells.

From Science Daily ● Dec. 1, 2025

According to testing records, the initial sample of store-bought raw milk carried high levels of the virus, and was found to have a polymerase chain reaction cycle threshold — or Ct — of roughly 25.

From Los Angeles Times ● Nov. 27, 2024

The numbers are likely to be underestimates: Oropouche’s symptoms resemble those of dengue, Zika, and several other diseases, and an infection can only be confirmed using polymerase chain reaction or antibody tests.

From Science Magazine ● Jun. 4, 2024

DNA replication requires many more proteins than just DNA polymerase to unfold the twisted double helix and to ensure that the genetic information is copied accurately.

From "The Gene" by Siddhartha Mukherjee

Random Word

Spin the wheel and learn a new word!

---