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Definitions

molecular

[muh-lek-yuh-ler] / məˈlɛk yə lər /
ADJECTIVE
microscopic
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Sean Eddy, a professor of molecular and cellular biology, said about 70% of the grades he gives are A’s because that many students meet the threshold for what he considers mastery of the material.

From The Wall Street Journal • Apr. 3, 2026

An industry report found Lilly gets drugs to market 3.5 years faster than the rest of the industry on average, with over 24 new molecular entity launches occurring between 2015 and 2025.

From Barron's • Mar. 30, 2026

Stars form under very specific conditions, relying on large amounts of cold molecular hydrogen gas.

From Science Daily • Mar. 30, 2026

The researchers explored how immune cells change at the molecular level over time and whether specific markers are tied to symptoms like fatigue or breathing difficulties.

From Science Daily • Mar. 26, 2026

The cells in a drop of blood contain a different sort of molecular factory, the mitochondrion, which combines food with oxygen to extract useful energy.

From "Cosmos" by Carl Sagan