molecular biology


Definition of molecular biology

: a branch of biology dealing with the ultimate physicochemical organization of living matter and especially with the molecular basis of inheritance and protein synthesis

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Other Words from molecular biology

molecular biologist noun

Examples of molecular biology in a Sentence

Recent Examples on the Web For example, more drug companies wanted applicants with a deep knowledge of molecular biology who can also write computer code to decipher huge quantities of genomic data, according to the report., "Life-sciences jobs are opening up faster in Massachusetts than employers can fill them, according to a report that says colleges aren’t preparing enough qualified graduates for such positions.," 11 Dec. 2019 The success of Herceptin, along with the advance of molecular biology techniques and DNA sequencing, led to an explosion of biomarker research. Scientific American, "The Coming Age of Molecular Medicine," 2 Oct. 2019 Often described as a major milestone of 20th century biochemistry and molecular biology, the PCR technique opened the way for a wide variety of studies and applications of DNA, the celebrated molecule that lies at the foundations of life. Martin Weil,, "Kary Mullis, unconventional Nobel laureate who unlocked DNA research, 74," 12 Aug. 2019 From the very beginning of life, cells needed to move electrons around between molecules as part of their metabolism, explained Ross Hardison, a professor of biochemistry and molecular biology at Pennsylvania State University. Quanta Magazine, "Icefish Study Adds Another Color to the Story of Blood," 22 Apr. 2019 Andrew DeLaat, Medina, biochemistry and molecular biology major. Sam Boyer,, "College Corner Medina County," 9 Aug. 2019 But depression does not affect everyone, and the molecular biology of resilience for psychiatric disorders can be clearly seen by inspecting the brains of lab animals. Gary Stix, Scientific American, "Can a Pill that Boosts ‘Resilience’ Treat Depression?," 11 Apr. 2018 Olson, 63, is Exonics’ chief scientific adviser and the molecular biology department chair at UT Southwestern. Orla Mccaffrey, Dallas News, "Boston research company bets on UT Southwestern researcher's gene therapy," 18 June 2019 And researchers are beginning to bridge the gaps between disciplines—biophysics, engineering, or molecular biology—that have long frustrated progress in this area. Sally Adee, Quartz, "Our bodies are full of electricity that could help us fight cancer," 30 May 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'molecular biology.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of molecular biology

1884, in the meaning defined above

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Time Traveler for molecular biology

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The first known use of molecular biology was in 1884

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Statistics for molecular biology

Last Updated

19 Dec 2019

Cite this Entry

“Molecular biology.” The Dictionary, Merriam-Webster Inc., Accessed 17 January 2020.

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More Definitions for molecular biology

molecular biology


Medical Definition of molecular biology

: 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, March 1993 The 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, 11 Oct. 1994

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