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nucleus Definition

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nucleus
noun(nu-cle-us)
a part of the cell containing DNA and RNA and responsible for growth and reproduction
Synonyms: cell nucleus, karyon,
nucleus
noun(nu-cle-us)
a small group of indispensable persons or things
Synonyms: core, core group,
nucleus
noun(nu-cle-us)
the central structure of the lens that is surrounded by the cortex
Synonyms: lens nucleus,
nucleus
noun(nu-cle-us)
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
nucleus
noun(nu-cle-us)
(astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
nucleus
noun(nu-cle-us)
the positively charged dense center of an atom

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