Definition of underflow in English:


Line breaks: under|flow
Pronunciation: /ˈʌndəfləʊ


  • 1An undercurrent: the powerful underflow around the wreck
  • 1.1A horizontal flow of water through the ground, especially beneath a riverbed.
  • 2 [mass noun] Computing The generation of a number that is too small to be represented in the device meant to store it.
    More example sentences
    • 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.

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