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mother lode

or moth·er·lode

[ muhth-er-lohd ]
/ ˈmʌð ərˌloʊd /
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noun

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

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Origin of mother lode

First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

Example sentences from the Web for mother lode

British Dictionary definitions for mother lode

mother lode

noun

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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