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.
Russel Sage Foundation. Social Inequality and Educational Disadvantage. Too many of Americaâs most disadvantaged children grow up without the skills needed to thrive in the twenty-first century. Whether in educational attainment between income groups or racial/ethnic groups or across geographic locationsâinequality persists.