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nucleus
the central structure of the lens that is surrounded by the cortex
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noun
the central structure of the lens that is surrounded by the cortex
noun
a part of the cell containing DNA and RNA and responsible for growth and reproduction
noun
any histologically identifiable mass of neural cell bodies in the brain or spinal cord
noun
a small group of indispensable persons or things
“five periodicals make up the core of their publishing program”
noun
the positively charged dense center of an atom
noun
(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
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five periodicals make up the core of their publishing program
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