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underflow

/ˈʌndərˌfloʊ/
noun
  1. A current of water flowing beneath the surface, especially in a river or ocean.
    • Scientists measured the underflow to study groundwater movement.
    • The river's underflow can be dangerous for swimmers.
    • The underflow carried sediment downstream beneath the calm surface.
  2. In computing, a condition where a calculation produces a number too small to be represented in the available memory.
    • Underflow can occur when dividing very small numbers.
    • The program crashed due to an arithmetic underflow error.
    • The developer added a check to prevent underflow in the algorithm.
Antonyms
overflow
verb
  1. To flow beneath something.
    • The river underflows the bridge through a series of pipes.
    • The groundwater underflows the entire valley.
    • A hidden stream underflows the old house.
  2. In computing, to experience an underflow error.
    • The calculation underflowed because the numbers were too small.
    • The counter underflowed and reset to zero.
    • If the value underflows, the system logs a warning.
Antonyms
overflow