molecular

adjective

mo·​lec·​u·​lar mə-ˈle-kyə-lər How to pronounce molecular (audio)
Synonyms of molecularnext
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
molecularly adverb

Examples of molecular in a Sentence

Recent Examples on the Web
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Baidu’s Li lauds AI’s potential for drug discovery, imaging proteins and treatments down to the molecular level to fully comprehend the structure of cancers and tumors. Charlie Campbell, Time, 11 Dec. 2025 Using mice, human cell models, and molecular target-screening, the scientists found that when the nutrient choline hits the gut, microbes convert it into a metabolite called trimethylamine (TMA). New Atlas, 9 Dec. 2025 Laros confirmed that on day one, Spectra successfully ran the HPCG benchmark, molecular dynamics code LAMMPS, and SPARTA, a Monte Carlo simulation tool widely used at Sandia. Neetika Walter, Interesting Engineering, 8 Dec. 2025 For example, designing new drugs, which requires simulating molecular interactions, or running millions of scenarios to assess portfolio risk, can be slow and computationally costly for conventional machines. Dylan Butts, CNBC, 4 Dec. 2025 See All Example Sentences for molecular

Word History

First Known Use

1770, in the meaning defined at sense 1

Time Traveler
The first known use of molecular was in 1770

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Cite this Entry

“Molecular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molecular. Accessed 14 Dec. 2025.

Kids Definition

molecular

adjective
mo·​lec·​u·​lar mə-ˈlek-yə-lər How to pronounce molecular (audio)
: of, relating to, or produced by molecules

Medical Definition

molecular

adjective
mo·​lec·​u·​lar mə-ˈlek-yə-lər How to pronounce molecular (audio)
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 perceptionG. A. Miller
compare molar entry 3 sense 2
molecularity noun
plural molecularities
molecularly adverb

More from Merriam-Webster on molecular

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