Sentence:  Another term we adopted to describe some of our problems was "<WSD>glitch</WSD>." Literally, a <WSD>glitch</WSD> 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. You have probably noticed a dimming of lights in your home when you turn a switch or start the dryer or the television set. 
Meaning of the word marked with <WSD> tags:  An unexpected behavior in an electrical signal, especially if the signal spontaneously returns to expected behavior after a period of time.