molecular biology

noun
Updated on: 20 Nov 2017

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

molecular biologist

noun

Recent Examples of molecular biology from the Web

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.

First Known Use of molecular biology

1884


Medical Dictionary

molecular biology

noun

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 RennieScientific AmericanMarch 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. AltmanThe New York Times11 Oct. 1994

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