mother lode

See also: motherlode and mother-lode

English

Alternative forms

• mother-lode
• motherlode

Etymology

Probably a calque of Spanish veta madre (“mother lode”).

Pronunciation

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Noun

mother lode (plural mother lodes)

1. (geology) A large or rich vein of gold or of another precious mineral from which other branches extend.
   • 1912, Jack London, “The Little Man”, in Smoke Bellew:

     Undeterred, reasoning from the coarseness of the gold that it had not traveled far, they had set out in search of the mother lode.

2. (idiomatic, by extension) Any source of valuable or useful material.
   • 2000 April 10, Dick Thompson, “The Feds Step Up the Pace”, in Time‎^[1]:

     It is also letting them probe the genomes of other organisms for DNA that could turn out to be a mother lode for medicine.

   • 2014 March 4, Landon Thomas Jr., “Emerging, but No Longer a Mother Lode of Profits”, in New York Times‎^[2]:

     Emerging, but No Longer a Mother Lode of Profits [title]

Translations

large or rich vein of precious mineral

• Dutch: hoofdader m
• Finnish: emosuoni
• French: filon principal m
• German: Hauptader f
• Polish: złoże (pl) n, kopalnia (pl) f, żyła (pl) f
• Spanish: veta madre f

Further reading

• mother lode on Wikipedia.Wikipedia