glitch

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The Word of the Day for September 3 is: 

glitch   \GLITCH\   noun
     1 : a usually minor malfunction, defect, fault, flaw, or 
imperfection 
     2 : a minor problem that causes a temporary setback
    *3 : a false or spurious electronic signal

Example sentence:
     A glitch in the program yielded some very odd results.

Did you know?
     There's a glitch in the etymology of "glitch" -- the 
origins of the word are not known for sure, though it may derive 
from the Yiddish "glitsh," meaning "slippery place." The first 
documented use of "glitch" in print in English is found in 
astronaut John Glenn's 1962 book _Into Orbit_. In it he 
wrote, "Literally, a glitch is a spike or change in voltage in 
an electrical circuit which takes place when the circuit 
suddenly has a new load put on it." The word "glitch" began as a 
technical term, and then quickly acquired a more general sense 
of "minor malfunction." Later, it came to be used technically 
once again to describe the misbehavior of computer programs.

*Indicates the sense illustrated in the example sentence.