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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Today, as an associate professor of medicine (endocrinology and metabolism) and of cellular and molecular physiology at Yale School of Medicine, Perry investigates how those same metabolic forces influence cancer.
—
Avi Patel, Hartford Courant, 30 Jan. 2026
The team's results have uncovered that its fast-moving molecular outflows are threaded by strong, organized magnetic structures.
—Robert Lea, Space.com, 30 Jan. 2026
Astrocytes, which outnumber neurons in many brain regions, have complex and varied shapes, and sometimes tendrils, that can envelop hundreds of thousands or millions of synapses, the junctions where neurons exchange molecular signals.
—Ingrid Wickelgren, Quanta Magazine, 30 Jan. 2026
Researchers demonstrated the molecular press annealing (MPA) strategy that helped perovskite solar cells survive for more than 2,000 hours of continuous testing in extreme heat and high humidity.
—Prabhat Ranjan Mishra, Interesting Engineering, 29 Jan. 2026
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Avi Patel, Hartford Courant, 30 Jan. 2026
The team's results have uncovered that its fast-moving molecular outflows are threaded by strong, organized magnetic structures.
—Robert Lea, Space.com, 30 Jan. 2026
Astrocytes, which outnumber neurons in many brain regions, have complex and varied shapes, and sometimes tendrils, that can envelop hundreds of thousands or millions of synapses, the junctions where neurons exchange molecular signals.
—Ingrid Wickelgren, Quanta Magazine, 30 Jan. 2026
Researchers demonstrated the molecular press annealing (MPA) strategy that helped perovskite solar cells survive for more than 2,000 hours of continuous testing in extreme heat and high humidity.
—Prabhat Ranjan Mishra, Interesting Engineering, 29 Jan. 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 3 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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