1. a current of water flowing beneath the surface or beneath another current
2. in computing, a condition where a calculation produces a result too small to be represented in the available precision
Usage: computing

1. to flow underneath something

Examples

• The river’s underflow carried sediment along the bottom.
• Strong underflows near the beach can be dangerous for swimmers.
• The program crashed due to an underflow error in the calculation.
• Floating-point underflow occurs when numbers become too small to represent.
• Cold water tends to underflow warmer surface layers.
• The engineer monitored for both overflow and underflow conditions.
• Groundwater can underflow the main stream channel.