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

Each fiber is embedded with a unique molecular tracer during production, enabling genuine and transparent sharing of information about its lifecycle. —Sj Studio, Sourcing Journal, 4 Nov. 2024

What's more: Peptides are more productive than other skin-firming ingredients due to their smaller molecular size. —Jennifer Hussein, Allure, 29 Oct. 2024

Normal tau becomes phosphorylated as molecular phosphate groups are attached, which changes the protein's structure. —William A. Haseltine, Forbes, 25 Oct. 2024

However, understanding pain on a molecular, biochemical level boosts our chances of developing more impactful drugs and therapies that target specific mechanisms – like the overstimulation in those sodium channels. —New Atlas, 25 Oct. 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