Definition of “molecule” - English Dictionary

(Definition of “molecule” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“molecule” in American English

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moleculenoun [ C ]

us /ˈmɑl·əˌkjul/

science the smallest unit into which a substance can be divided without chemical change, usually a group of two or more atoms

adjective [ not gradable ] us /məˈlek·jə·lər/

(Definition of “molecule” from the Cambridge Academic Content Dictionary © Cambridge University Press)