nucleus

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nucleus /ˈnuːklijəs/ noun
plural nuclei /ˈnuːkliˌaɪ/ also nucleuses
nucleus
/ˈnuːklijəs/
noun
plural nuclei /ˈnuːkliˌaɪ/ also nucleuses
Learner's definition of NUCLEUS
[count]
biology : the central part of most cells that contains genetic material and is enclosed in a membrane
physics : the central part of an atom that is made up of protons and neutrons
: a central or most important part of something usually + of
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