nerve-center

nerve center

noun
1.
a group of nerve cells closely connected with one another and acting together in the performance of some function.
2.
a source of information, authority, action, etc.: The communications room is the nerve center of a battleship.

Origin:
1865–70

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
nerve center

noun
1. a center that provides information and control; "the nerve center of the diamond industry is in Amsterdam" 
2. a cluster of nerve cells governing a specific bodily process; "in most people the speech center is in the left hemisphere" [syn: center
WordNet® 3.0, © 2006 by Princeton University.
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