1. a small lump or nugget, especially of a precious metal or mineral
Usage: informal; often used in mining or geology contexts
2. a small piece or morsel of something
Usage: informal

Examples

• The prospector found a small nug of gold in the stream.
• She broke off a nug of chocolate from the bar.
• The miners extracted several nugs of silver from the ore.
• He saved every nug of information from the research papers.
• The jeweler examined the nug of platinum carefully.