What is a parapraxis?

what is a parapraxis? I hear someone in class use the term. I know it has something to do with Freud.

A Freudian slip, or parapraxia, is an error in speech or memory that is believed to be caused by the unconscious mind. Some errors, such as a woman accidentally calling her husband by the name of the other man with whom she is having an affair, seem to represent relatively clear cases of Freudian slips. In other cases, the error might appear to be trivial or bizarre, but may show some deeper meaning on analysis. Freudian slip is not limited to a slip of the tongue, or to sexual desires. It can extend to our word perception where we might read word incorrectly because of our fixations.