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molecule

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molecule/ˈmɑːlɪˌkjuːl/noun
pluralmolecules
molecule
/ˈmɑːlɪˌkjuːl/
noun
pluralmolecules
Learner's definition of MOLECULE  
[count]
: the smallest possible amount of a particular substance that has all the characteristics of that substance
: a very small amount of something

— molecular

/məˈlɛkjəlɚ/adjective
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