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
Once the mission concludes, researchers plan to analyze the tissue samples at the molecular level to assess how thousands of genes responded to spaceflight.
—
Sharmila Kuthunur, Space.com, 1 Apr. 2026
Grace is a molecular biologist by training, but his controversial ideas and overconfident attitude have kept him out of academia.
—Deana L. Weibel, The Conversation, 31 Mar. 2026
Ryan Gosling stars as Ryland Grace, a science teacher and former molecular biologist who is recruited by the government to help save the Earth from dying.
—Jazz Tangcay, Variety, 31 Mar. 2026
In our study, it’s significantly associated with a person having more molecular mutations as well.
—Angus Chen, STAT, 27 Mar. 2026
See All Example Sentences for molecular
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Sharmila Kuthunur, Space.com, 1 Apr. 2026
Grace is a molecular biologist by training, but his controversial ideas and overconfident attitude have kept him out of academia.
—Deana L. Weibel, The Conversation, 31 Mar. 2026
Ryan Gosling stars as Ryland Grace, a science teacher and former molecular biologist who is recruited by the government to help save the Earth from dying.
—Jazz Tangcay, Variety, 31 Mar. 2026
In our study, it’s significantly associated with a person having more molecular mutations as well.
—Angus Chen, STAT, 27 Mar. 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 5 Apr. 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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