A glitch is a problem or malfunction, usually a temporary one, in a system or machine. Your science fair team might experience a major glitch in your plans if you lose your data tables as the result of a computer glitch.

Glitch is a pretty new word, introduced in the 1960s when the science and technology of space flight was being developed. It originally meant a sudden surge of electrical current that caused a disturbance or malfunction. The word can also be used more broadly to describe any unexpected difficultly, like the glitch in your travel plans that resulted from airport delays.

Definitions of glitch
  1. noun
    a fault or defect in a computer program, system, or machine
    synonyms: bug
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    type of:
    defect, fault, flaw
    an imperfection in an object or machine
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