molecular
adjective
mo·lec·u·lar
mə-ˈle-kyə-lər 
1
: of, relating to, consisting of, or produced by molecules
molecular oxygen
2
: of or relating to individual or small components
a molecular view of the American Civil War
Examples of molecular in a Sentence
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The lightweight formula uses a five-layer complex of hyaluronic acid, with different molecular sizes that deliver moisture at multiple levels of the skin.
—
Christa Joanna Lee, Allure, 21 Mar. 2026
So these species have evolved various molecular mechanisms to sync up their spawning, often using proteins that sense and respond to light signals.
—Marlowe Starling, Quanta Magazine, 20 Mar. 2026
The goal is to unlock the extreme sensitivity necessary to decode a cell’s full molecular makeup, ultimately accelerating drug development.
—Mrigakshi Dixit, Interesting Engineering, 18 Mar. 2026
The study found after a series of treatments, the gene expression patterns of aged skin actually shifted to more closely resemble younger skin at a molecular level.
—Avery Newmark, AJC.com, 18 Mar. 2026
See All Example Sentences for molecular
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Christa Joanna Lee, Allure, 21 Mar. 2026
So these species have evolved various molecular mechanisms to sync up their spawning, often using proteins that sense and respond to light signals.
—Marlowe Starling, Quanta Magazine, 20 Mar. 2026
The goal is to unlock the extreme sensitivity necessary to decode a cell’s full molecular makeup, ultimately accelerating drug development.
—Mrigakshi Dixit, Interesting Engineering, 18 Mar. 2026
The study found after a series of treatments, the gene expression patterns of aged skin actually shifted to more closely resemble younger skin at a molecular level.
—Avery Newmark, AJC.com, 18 Mar. 2026
See All Example Sentences for molecular
Cite this Entry
“Molecular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular. Accessed 24 Mar. 2026.
Copy CitationKids Definition
molecular
adjective
mo·lec·u·lar
mə-ˈlek-yə-lər
: of, relating to, or produced by molecules
Medical Definition
molecular
adjective
mo·lec·u·lar
mə-ˈlek-yə-lər
1
: of, relating to, consisting of, or produced by molecules
molecular oxygen
2
: relating to or emphasizing individual responses or structures of behavior
proceed by more and more detailed analysis to the molecular facts of perception—G. A. Miller
compare molar entry 3 sense 2
G. A. MillerLove words? Need even more definitions?
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