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