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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 of mother lode
1855-1860
1855-60
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for mother lode
Contemporary Examples
Historical Examples
  • But I can bring up the grub, while you keep after that mother lode.

    Smoke Bellew Jack London
  • He starts from the placer fields to search for the mother lode.

    The Mystic Mid-Region Arthur J. Burdick
  • Briefly Ted related the story told by Singing Bird about the gold in the river, and how her father found the mother lode.

    Ted Strong in Montana Edward C. Taylor
  • Steve shouted down to me that the slip had uncovered the mother lode.

    The Heart of Canyon Pass Thomas K. Holmes
  • Here we have not the chance outcropping of "the lighter vein," but the mother lode which the humorist finds inexhaustible.

    The Gentle Reader Samuel McChord Crothers
  • "Me, too," said Kit, and the other boys raised a shout for the mother lode and the excitement of finding gold.

    Ted Strong in Montana Edward C. Taylor
  • Much less than a commercially valuable placer deposit in unconsolidated surface rocks may start a search for the mother lode.

  • If I hadn't that hunch to sit down here, we wouldn't have found the mother lode in a blue moon.

    Ted Strong in Montana Edward C. Taylor
British Dictionary definitions for mother lode

mother lode

noun
1.
(mining) the principal lode in a system
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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