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

molecularly

mə-ˈle-kyə-lər-lē 

adverb

Examples of molecular in a Sentence

Recent Examples on the Web

Moreover, hibernation is poorly understood at the molecular and cellular level. —Lauren Leffer, Popular Science, 28 Nov. 2024

Jonathon Ditlev, a molecular biologist at The Hospital for Sick Children (SickKids) Research Institute in Toronto, Canada, said he's impressed by the findings' potential. —Karen Weintraub, USA TODAY, 27 Nov. 2024

The glucose in your cells then supplies your body with energy at the molecular level. —Rosemary Trout, Discover Magazine, 27 Nov. 2024

This careful combination of orange oil’s natural degreasing properties with advanced molecular science gives Orange House’s products their signature fresh, effective clean. —Jacob Lee, The Mercury News, 27 Nov. 2024

Word History

First Known Use

1770, in the meaning defined at sense 1

Phrases Containing molecular

• gram molecular weight
• molecular biology
• molecular chaperone
• molecular formula
• molecular genetics
• molecular mass
• molecular orbital
• molecular sieve
• molecular weight

Kids 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

molecularity

-ˌlek-yə-ˈlar-ət-ē 

noun

plural molecularities

molecularly

mə-ˈlek-yə-lər-lē 

adverb