Synonym: core, focus, heart, hub, kernel, middle. Similar words: nuclear, nuclear energy, be used to, knuckles, make use of, reusable, be useful to, cornucopia. Meaning: ['nuːklɪəs /'nju-] 
n. 1. a part of the cell containing DNA and RNA and responsible for growth and reproduction 2. the positively charged dense center of an atom 3. a small group of indispensable persons or things 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 5. any histologically identifiable mass of neural cell bodies in the brain or spinal cord.
n. 1. a part of the cell containing DNA and RNA and responsible for growth and reproduction 2. the positively charged dense center of an atom 3. a small group of indispensable persons or things 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 5. any histologically identifiable mass of neural cell bodies in the brain or spinal cord. 
Random good picture Not show
1. DNA is stored in the nucleus of a cell.
2. The nucleus of an atom consists of neutrons, protons and other particles.
3. These books are regarded as the nucleus of the library.
4. Neutrons and protons are bound together in the nucleus of an atom.
5. The fortress was the nucleus of the ancient city.
6. These young people formed the nucleus of the club.
7. the protoplasm of a cell nucleus.
8. These paintings will form the nucleus of a new collection.
9. The nucleus of a deuterium atom contains a proton and a neutron.
10. These three players will form the nucleus of a revised and stronger team.
11. Marantz and Grohl form the nucleus of the Atlanta operation.
12. The Civic Movement could be the nucleus of a centrist party of the future.
13. The nucleus has two protons and two neutrons.
14. Usually this sucked-out cytoplasm will contain the egg nucleus.
15. The cell body contains the nucleus.
16. There they coalesce to form a single nucleus.
17. Leading into the nucleus are one or more dendrites.
18. The HeLa cell nucleus continues to behave as before.sentencedict.com/nucleus.html
19. Every living cell and every atom has a nucleus.
20. Alexander's new gaol remains the nucleus of Maidstone Prison today.
21. Each U-235 nucleus that decays spontaneously emits two large but unequal fragments[sentencedict.com], plus several neutrons.
22. The small nucleus of ex-service officers naturally guarded their job closely.
23. One should not, however, think that the nucleus of any cell will support development if transplanted into the egg.
24. The main maser features may have originated from the slowly rotating disk or from the outflow gas near the galactic nucleus.
25. Could the same result be obtained by transplanting a nucleus from well-differentiated cells?
26. In most mammals, apart from the cat, the dorsal lateral geniculate nucleus projects exclusively to area 17.
27. Even fraction of a second, the optical density of the nucleus is measured and stored in the computer's memory.
28. The reason is not clear, but must be the result of some subtle change in the genetic information in the nucleus.
29. In 1875 Boston Spa College was purchased, and this became the nucleus of the present School.
30. Each of the two cells now contains a diploid nucleus, containing both maternal and paternal chromosomes.
More similar words: nuclear, nuclear energy, be used to, knuckles, make use of, reusable, be useful to, cornucopia, ileum, pile up, sleuth, bundle up, linoleum, gobble up, double up, petroleum, clear, cycle, clerk, uncle, clean, clever, circle, cleave, muscle, oracle, clergy, unclear, debacle, clear up.