molecular biology
noun
: a branch of biology dealing with the ultimate physicochemical organization of living matter and especially with the molecular basis of inheritance and protein synthesis
molecular biologist
noun
Examples of molecular biology in a Sentence
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Rather than a single line of information flow, molecular biology now acknowledges DNA and RNA as interactive elements.
—
William A. Haseltine, Forbes.com, 18 Aug. 2025
Her father was a professor of immunology and the chair of molecular biology.
—Nicole Villalpando, Austin American Statesman, 30 July 2025
Through the not-for-profit plasmid repository Addgene, PROTEUS will be available to any lab worldwide with the appropriate infrastructure, virology training, and skills in molecular biology.
—IEEE Spectrum, 27 July 2025
Several of the scientists NPR talked to, such as Kimiko Krieger, an assistant professor of biochemistry and molecular biology at the Bloomberg School for Public Health at Johns Hopkins University, didn't get a clear explanation as to why their funding had been pulled.
—Scott Neuman, NPR, 9 July 2025
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William A. Haseltine, Forbes.com, 18 Aug. 2025
Her father was a professor of immunology and the chair of molecular biology.
—Nicole Villalpando, Austin American Statesman, 30 July 2025
Through the not-for-profit plasmid repository Addgene, PROTEUS will be available to any lab worldwide with the appropriate infrastructure, virology training, and skills in molecular biology.
—IEEE Spectrum, 27 July 2025
Several of the scientists NPR talked to, such as Kimiko Krieger, an assistant professor of biochemistry and molecular biology at the Bloomberg School for Public Health at Johns Hopkins University, didn't get a clear explanation as to why their funding had been pulled.
—Scott Neuman, NPR, 9 July 2025
See All Example Sentences for molecular biology
Cite this Entry
“Molecular biology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular%20biology. Accessed 9 Sep. 2025.
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molecular biology
noun
: a branch of biology dealing with the study and understanding of biological activity and processes at the molecular level and especially the molecular basis of gene function and protein synthesis
Molecular biology experiments proved that small pieces of DNA did sometimes move within or between chromosomes, thereby triggering changes in gene expression.—John Rennie, Scientific American
John Rennie, Scientific AmericanThe test is based on several recent advances in molecular biology, including the new insight that cells slip into the uncontrolled growth known as cancer through defects in specific enzymes that monitor and control division.—Lawrence K. Altman, The New York Times
Lawrence K. Altman, The New York TimesLove words? Need even more definitions?
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