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
5.any histologically identifiable mass of neural cell bodies in the brain or spinal cord
Idiom of the Day
under one's breath
in a whisper, with a low voice
The man was talking under his breath in the movie theater and somebody complained.