1. A part of the cell containing DNA and RNA and responsible for growth and reproduction (synset 105442503)
  2. The positively charged dense center of an atom (synset 109397997)
  3. A small group of indispensable persons or things (synset 108259144)
    "five periodicals make up the core of their publishing program"
  4. (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 (synset 109398135)
  5. Any histologically identifiable mass of neural cell bodies in the brain or spinal cord (synset 105509583)
  6. The central structure of the lens that is surrounded by the cortex (synset 105328312)

Other Searches