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 researchers overcame this by using molecular beam epitaxy, a precise technique for growing ultra-thin crystal layers.
—
Aamir Khollam, Interesting Engineering, 30 Oct. 2025
While the fruit of the western plants looked slightly different — with a purplish color and darker vines instead of their usual bright and warm hues — the biggest differences between them and tomatoes from the eastern islands was found on a molecular level.
—Taylor Nicioli, CNN Money, 30 Oct. 2025
The first-of-its-kind facility houses a shipping warehouse and medical labs for three companies, including HealthTrackRx, a leading molecular testing laboratory that tests for infectious diseases.
—Marina Johnson, Louisville Courier Journal, 29 Oct. 2025
Sure, the rules might be the same everywhere, as the Universe fundamentally uses the same fundamental ingredients and the same fundamental laws to form stars, planets, and whatever molecular machinery arises on those worlds all throughout the Universe.
—Big Think, 29 Oct. 2025
See All Example Sentences for molecular
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Aamir Khollam, Interesting Engineering, 30 Oct. 2025
While the fruit of the western plants looked slightly different — with a purplish color and darker vines instead of their usual bright and warm hues — the biggest differences between them and tomatoes from the eastern islands was found on a molecular level.
—Taylor Nicioli, CNN Money, 30 Oct. 2025
The first-of-its-kind facility houses a shipping warehouse and medical labs for three companies, including HealthTrackRx, a leading molecular testing laboratory that tests for infectious diseases.
—Marina Johnson, Louisville Courier Journal, 29 Oct. 2025
Sure, the rules might be the same everywhere, as the Universe fundamentally uses the same fundamental ingredients and the same fundamental laws to form stars, planets, and whatever molecular machinery arises on those worlds all throughout the Universe.
—Big Think, 29 Oct. 2025
See All Example Sentences for molecular
Cite this Entry
“Molecular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular. Accessed 31 Oct. 2025.
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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