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 discovery of unusually warm molecular hydrogen in these LLAGN is a testament to the unexpected complexity hiding in plain sight.
—
Paul Sutter, Space.com, 11 Feb. 2026
Intrinsic systems, in turn, rely on reversible chemical bonds or dynamic molecular interactions built directly into the material’s structure.
—Georgina Jedikovska, Interesting Engineering, 11 Feb. 2026
Noah Whiteman, a professor of molecular and cell biology at UC Berkeley, hailed the paper for demystifying a symbiotic relationship that has captivated scientists.
—Lila Seidman, Los Angeles Times, 10 Feb. 2026
Recently, more advanced molecular techniques have allowed neuro-cartographers to investigate individual cells.
—Amber Dance, Quanta Magazine, 9 Feb. 2026
See All Example Sentences for molecular
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Paul Sutter, Space.com, 11 Feb. 2026
Intrinsic systems, in turn, rely on reversible chemical bonds or dynamic molecular interactions built directly into the material’s structure.
—Georgina Jedikovska, Interesting Engineering, 11 Feb. 2026
Noah Whiteman, a professor of molecular and cell biology at UC Berkeley, hailed the paper for demystifying a symbiotic relationship that has captivated scientists.
—Lila Seidman, Los Angeles Times, 10 Feb. 2026
Recently, more advanced molecular techniques have allowed neuro-cartographers to investigate individual cells.
—Amber Dance, Quanta Magazine, 9 Feb. 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 14 Feb. 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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