Dictionary Results for nucleus

1. nucleus - noun

· a part of the cell containing DNA and RNA and responsible for growth and reproduction

Synonym(s): cell_nucleus, karyon

Hypernym(s): organelle, cell_organelle, cell_organ

2. nucleus - noun

· the positively charged dense center of an atom

Hypernym(s): center, centre, midpoint

3. nucleus - noun

· a small group of indispensable persons or things; "five periodicals make up the core of their publishing program"

Synonym(s): core, core_group

Hypernym(s): set

4. nucleus - 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

Hypernym(s): center, centre, midpoint

5. nucleus - noun

· any histologically identifiable mass of neural cell bodies in the brain or spinal cord

Hypernym(s): neural_structure

6. nucleus - noun

· the central structure of the lens that is surrounded by the cortex

Synonym(s): lens_nucleus

Hypernym(s): structure, anatomical_structure, complex_body_part, bodily_structure, body_structure

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