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
Recent Examples on the Web
Your saliva contains an enzyme, a kind of chemical, called amylase that starts breaking down the cereal on a molecular level.
—
Brian Robert Boulay, The Conversation, 28 Aug. 2025
Luckily, Australian skinks have evolved their own molecular armor against cobra venom—using the exact same sugar-blocking mechanism that cobras use to resist their own toxins.
—Popular Science Team, Popular Science, 28 Aug. 2025
So the high abundance of both molecular coolants earlier on may have allowed smaller clouds to cool faster and collapse to form lower-mass stars.
—ArsTechnica, 27 Aug. 2025
The microbiology lab will host various science classes, including general education life sciences, genetics, microbiology for nursing and advanced molecular labs.
—Maya Wilkins, Chicago Tribune, 27 Aug. 2025
See All Example Sentences for molecular
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Brian Robert Boulay, The Conversation, 28 Aug. 2025
Luckily, Australian skinks have evolved their own molecular armor against cobra venom—using the exact same sugar-blocking mechanism that cobras use to resist their own toxins.
—Popular Science Team, Popular Science, 28 Aug. 2025
So the high abundance of both molecular coolants earlier on may have allowed smaller clouds to cool faster and collapse to form lower-mass stars.
—ArsTechnica, 27 Aug. 2025
The microbiology lab will host various science classes, including general education life sciences, genetics, microbiology for nursing and advanced molecular labs.
—Maya Wilkins, Chicago Tribune, 27 Aug. 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 4 Sep. 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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