D defs.my
Entry 2 senses Webster, 1913

Nugget

/nŭg'ət/ · Nug·get · IPA /ˈnʌɡət/
01 n. A lump; a mass, esp. a native lump of a precious metal; as, a nugget of gold.
  1. 1.
    A lump; a mass, esp. a native lump of a precious metal; as, a nugget of gold.
  2. 2.
    Something of value, usually found among many other less valuable things; -- often used figuratively; as, a nugget of useful information in a sea of data.