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 mRNA is then read by a piece of molecular machinery called the ribosome, which constructs the protein — a process called translation.
—
Philip Ball, Quanta Magazine, 18 June 2026
Insights at the system level are only useful if there is a working channel back to the molecular bench—and a culture that treats redesign as progress, not failure.
—Dr. Samer Taha, Forbes.com, 18 June 2026
When light disappears in the evening, the pineal gland starts producing melatonin, the molecular messenger of darkness.
—Literary Hub, 17 June 2026
The materials form molecular-level bonds, resulting in a robust, unified structure.
—Chris Young, Interesting Engineering, 16 June 2026
See All Example Sentences for molecular
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Philip Ball, Quanta Magazine, 18 June 2026
Insights at the system level are only useful if there is a working channel back to the molecular bench—and a culture that treats redesign as progress, not failure.
—Dr. Samer Taha, Forbes.com, 18 June 2026
When light disappears in the evening, the pineal gland starts producing melatonin, the molecular messenger of darkness.
—Literary Hub, 17 June 2026
The materials form molecular-level bonds, resulting in a robust, unified structure.
—Chris Young, Interesting Engineering, 16 June 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 23 Jun. 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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