molecule
noun
the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound.
molecules
-
pluralof molecule.plural
The grammatical form denoting more than one person, place, thing, or idea.
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.
These highly reactive molecules can harm cellular structures, but they also play an important role in signaling that something is wrong.
From Science Daily ● Oct. 28, 2026
Members of the order Xylariales are known for producing a variety of specialized chemical compounds and enzymes capable of breaking down complex molecules in plants.
From Science Daily ● Oct. 26, 2026
Cohen has played a leading role in discovering and studying these molecules, which are increasingly recognized as important participants in cellular health.
From Science Daily ● Oct. 25, 2026
They found that MTCH2 helps regulate the movement of fatty acids into mitochondria, where these molecules can be broken down to produce energy.
From Science Daily ● Oct. 24, 2026
In contrast, for any of the physicist’s elementary particles and isotopes and of the chemist’s molecules, all individuals of the entity are identical to each other.
From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond
