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Definition of "mother lode" []

  • The main vein of ore in a region. (noun)
  • An abundant or rich source: "the kind . . . who makes Boston the mother lode of advance men” ( David Nyhan). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "mother lode" in a sentence
  • "As torrential rains pelted wildfire-stripped hillsides and flooded highways, a team of scientists hunkered down at the California Institute of Technology to work on a "Frankenstorm" scenario -- a mother lode wintry blast that could potentially sock the Golden State."
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