Molecule Definition

A molecule forms when two or more atoms chemically bond.
A molecule forms when two or more atoms chemically bond. Lawrence Lawry, Getty Images

Molecule Definition: a molecule refers to two or more atoms which have chemically combined to form a single species.

Examples: Examples of molecules include water H2O, oxygen, gas, O2

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Helmenstine, Anne Marie, Ph.D. "Molecule Definition." ThoughtCo, May. 21, 2014, thoughtco.com/definition-of-molecule-605888. Helmenstine, Anne Marie, Ph.D. (2014, May 21). Molecule Definition. Retrieved from https://www.thoughtco.com/definition-of-molecule-605888 Helmenstine, Anne Marie, Ph.D. "Molecule Definition." ThoughtCo. https://www.thoughtco.com/definition-of-molecule-605888 (accessed December 13, 2017).