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.
Business Center. Disadvantaged Business Enterprise Program. The Disadvantaged Business Enterprise (DBE) Program is a U.S. Department of Transportation (USDOT) program that seeks to ensure nondiscrimination in, and create a level playing field on which DBEs can compete fairly for, USDOT-assisted contracts.