"nucleous" is probably misspelled. Trying nucleus instead Definition of nucleus
nucleus has definitions from the fields of anatomy,zoology,physics,nuclear physics,astronomy,histology
1
[ noun ] (anatomy,zoology) a part of the cell containing DNA and RNA and responsible for growth and reproduction

Synonyms

karyon cell_nucleus

2
[ noun ] a small group of indispensable persons or things

Synonyms

core core_group

Examples

"five periodicals make up the core of their publishing program"

3
[ noun ] (physics,nuclear physics) the positively charged dense center of an atom
4
[ noun ] (anatomy,zoology,histology) any histologically identifiable mass of neural cell bodies in the brain or spinal cord
5
[ 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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