Wiktionary(0.00 / 0 votes)Rate this definition: 1  isopleth(Noun) A line drawn on a map through all points having the same value of some measurable quantity. 2  isopleth(Noun) thermodynamics A line in a phase diagram indicating the same mole fraction.
(a) General. Socially disadvantaged individuals are those who have been subjected to racial or ethnic prejudice or cultural bias within American society because of their identities as members of groups and without regard to their individual qualities. The social disadvantage must stem from circumstances beyond their control.
Social exclusion (or marginalization) is social disadvantage and relegation to the fringe of society.It is a term used widely in Europe, and was first used in France.It is used across disciplines including education, sociology, psychology, politics and economics.ocial exclusion at the individual level results in an individual's exclusion from meaningful participation in society. An example is the exclusion of single mothers from the welfare system prior to welfare reforms of the 1900s.