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See also: fan out



fan +‎ out, from the phrasal verb.


fanout (countable and uncountable, plural fanouts)

  1. (computing, electronics) The degree to which something fans out, or splits into separate sections.
    B+ trees have very high fanout, which reduces the number of I/O operations required to find an element in the tree.
    The fanout of a logic gate output is the number of gate inputs to which it is connected.

Related terms[edit]