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polymerase

American  
[pol-uh-muh-reys, -reyz] / 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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

polymerase Scientific  
/ pə-lĭmə-rās′,pŏlə-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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The researchers focused on RNA polymerase, the enzyme that reads DNA and produces RNA -- the first step in gene expression.

From Science Daily Sep. 5, 2026

Now, a team of international scientists, including University of Michigan researchers, have used advanced microscopy to image how ribosomes recruit to mRNA while it's being transcribed by an enzyme called RNA polymerase, or RNAP.

From Science Daily Nov. 28, 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

The reason for this is that the tests most commonly used — polymerase chain reaction, or PCR, tests — are designed to detect genetic material from a specific organism, such as a flu virus.

From Los Angeles Times May 16, 2024

Mutations might occur during replication if the enzyme DNA polymerase makes a mistake.

From "Cosmos" by Carl Sagan

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