Definition of underflow in English:

underflow

noun

  • 1An undercurrent:

    ‘the powerful underflow around the wreck’
    undertow, underflow, underswell, underdrift, understream, undertide, underrun
    View synonyms
    1. 1.1 A horizontal flow of water through the ground, especially beneath a riverbed.
  • 2Computing
    [mass noun] The generation of a number that is too small to be represented in the device meant to store it.

    • ‘At each step of the algorithm, one should rescale constructed arrays to prevent numerical underflow.’
    • ‘Specifically, it looks for dynamic buffer underflows and detects memory reuse after it is freed.’

Pronunciation:

underflow

/ˈʌndəfləʊ/