This word is acceptable for play in the US dictionary that is being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The main, central lode of a natural resource, near which smaller deposits of the same ore etc. exist.

n. The main prize, best cut or pick etc. by far, dwarfing all others.

"US intelligence network aims to put heat on al-Qa'ida US intelligence will seek to achieve in the coming weeks "information dominance" over the al-Qa'ida network - taking advantage of what officials have called a "motherlode" of data found at Osama bin Laden's compound in Abbottabad."

mothered    motherhood    motherland    motherless    motherly   

lion's share