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Definition of molecule noun from the Oxford Advanced Learner's Dictionary

molecule

noun
 
/ˈmɒlɪkjuːl/
 
/ˈmɑːlɪkjuːl/
(chemistry)
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  1. a group of atoms that forms the smallest unit that a substance can be divided into without a change in its chemical nature
    • A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
    Extra Examples
    • the molecules in the crystal
    • the number of atoms in a molecule
    • two molecules of hydrogen
    Topics Physics and chemistryb2
    Oxford Collocations Dictionaryadjective
    • complex
    • simple
    • individual
    verb + molecule
    • form
    • attach
    • bind
    molecule + verb
    • combine
    • be composed of something
    • contain something
    preposition
    • molecule of
    See full entry
    Word Originlate 18th cent.: from French molécule, from modern Latin molecula, diminutive of Latin moles ‘mass’.
See molecule in the Oxford Advanced American DictionarySee molecule in the Oxford Learner's Dictionary of Academic English
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