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molecule
[ mol-uh-kyool ]
noun
- Chemistry, Physics. 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.
- Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to the molecular weight; gram molecule.
- any very small particle.
molecule
/ ˈɒɪˌː /
noun
- the simplest unit of a chemical compound that can exist, consisting of two or more atoms held together by chemical bonds
- a very small particle
molecule
- A group of two or more atoms linked together by sharing electrons in a chemical bond. Molecules are the fundamental components of chemical compounds and are the smallest part of a compound that can participate in a chemical reaction.
molecule
- A combination of two or more atoms held together by a force between them. ( See covalent bond and ionic bond .)
Other Word Forms
- ܲ·DZ·ܱ noun
- p·DZ·ܱ noun
Word History and Origins
Origin of molecule1
Word History and Origins
Origin of molecule1
Compare Meanings
How does molecule compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
Each molecule of glucose, she explained, surrounds itself with water molecules.
A Cambridge team studying the atmosphere of a planet called K2-18b has detected signs of molecules which on Earth are only produced by simple organisms.
These emission lines can split into several components in the presence of a magnetic field, caused by the interaction between the internal magnetic moments of the emitting atoms and molecules with the external magnetic field.
It works in a new way, blocking the activity of a protein molecule called AKT which drives cancer growth.
From there, they sneak past the protective barrier lining the respiratory system and head to the lymph nodes in search of cells that express a particular protein called signaling lymphocytic activation molecule, or SLAM.
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