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mother lode

 - 2 dictionary results

mother lode

–noun
1. Mining. a rich or important lode.
2. a major or profitable source or supply: New York City is a mother lode of actors.

Origin:
1855–60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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mother lode  
n.  
  1. The main vein of ore in a region.

  2. An abundant or rich source: "the kind . . . who makes Boston the mother lode of advance men" (David Nyhan).

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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