- The main vein of ore in a spot.
- a plentiful or rich origin: "the kind . . . who tends to make Boston mom lode of advance men” ( David Nyhan).
- a sizable or rich vein of gold or of some other precious mineral where other limbs extend.
- Any supply of valuable or of good use material.
- the primary vein of ore in a deposit
- Definition for "mother lode"
- Sentence for "mother lode"
- Hypernym for "mother lode"
- Urban Dictionary for "mother lode"