displacement(redirected from displacement of abomasum)
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displacement,in psychology: see defense mechanismdefense mechanism,
in psychoanalysis, any of a variety of unconscious personality reactions which the ego uses to protect the conscious mind from threatening feelings and perceptions.
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in mechanics, the vector connecting the positions of a moving point at the beginning and the end of a certain time interval. The displacement vector is directed along the chord between the beginning and end of the point’s trajectory.
Although many aspects of the personality theory formulated by Sigmund Freud have been rejected by contemporary analysts, Freud was nevertheless responsible for a significant number of insights into human nature that have been generally accepted. Among these insights are the Freudian “defense mechanisms,” one of which is displacement. In displacement we repress a certain urge, which is then redirected to another object or person. A familiar example is the employee who is yelled at by his boss, and who then goes home and yells at his spouse. What he really wants to do is to yell back at his boss, but he redirects the urge and takes out his anger on a safer target. A roughly similar process takes place in dreams.
According to Freud, dreams provide an avenue for the expression of normally repressed desires while simultaneously disguising and censoring our real urges. In this view the purpose of dreams is to allow us to satisfy in fantasies the instinctual urges that society judges to be unacceptable in some way, such as the urge to kill a bullying employer. If, however, we were to dream about the actual, overt murder of our boss, the emotions evoked by he dream would wake us up. So that our sleep is not continually disturbed by such dreams, the mind modifies and disguises the content of our dreams so that strong emotions are not evoked. Thus, instead of dreaming about killing our boss, we might, for example, dream about our employer’s automobile being accidentally crushed by a runaway garbage truck.
ii. The mass of air displaced by a balloon or an airship. It may also be referred to as the weight of displaced air.
iii. The distance of any point from a standard point.
iv. The separation between a target and an interceptor at any point of time.