| 1. |
(noun) a part of the cell containing DNA and RNA and responsible for growth and reproduction |
|
Synonyms: cell nucleus |
|
Related Words: cell organ, organelle |
|
| 2. |
(noun) the positively charged dense center of an atom |
|
Related Words: center, centre, midpoint |
|
| 3. |
(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 |
|
Related Words: center, centre, midpoint |
|
| 4. |
(noun) a small group of indispensable persons or things; "five periodicals make up the core of their publishing program" |
|
Synonyms: core, core group |
|
Related Words: cadre, set |
|