Synonyms for nucleus

Noun

1. nucleus, cell nucleus, karyon, organelle, cell organ

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

2. nucleus, center, centre, midpoint

usage: the positively charged dense center of an atom

3. core, nucleus, core group, set

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

4. nucleus, center, centre, midpoint

usage: (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

5. nucleus, neural structure

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