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.
Small Disadvantaged Business (SDB) A Small Disadvantaged Business (SDB) is a small business that is at least 51 percent owned by one or more individuals who are both socially and economically disadvantaged. SDB status makes a company eligible for bidding and contracting benefit programs involved with federal procurement. Download this free guide.