What does the word nucleus mean?

Usage examples for nucleus

  1. I suppose the castle which was the nucleus of the town stood on top of the hill, and houses were gradually built from it down to the ford from which the town takes its name. – The Charm of Ireland by Burton Egbert Stevenson
  2. But, in the world of reality, at the very heart of reality, there is always a fixed point, a solid nucleus, about which the facts group themselves in accordance with a logical order. – The Eight Strokes of the Clock by Maurice Le Blanc
  3. When Western Virginia was invaded, he offered his services to go to her defense, and, relying confidently on the sentiment, so strong in his own heart, of devotion to the State by all Virginians, he believed it was only needful for him to have a nucleus around which the people could rally to resist the invasion of their country. – The Rise and Fall of the Confederate Government, Vol. 1 (of 2) by Jefferson Davis

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