Science / Chemistry / Van Der Waals Equation: A semiempirical equation that describes the relationship between pressure (P), volume (V), temperature (T), and moles of gas (n) for a real gas. The equation is (P + n2a/V2)(V - nb) = nrt, where a and b are constants that include the effects of molecular attractions and molecular volume. A and b are usually fitted to experimental data for a particular gas.
Health / Health Insurance / Provider-Sponsored Organization (PSO): A healthcare organization—established and organized, or operated, by a healthcare provider or a group of affiliated healthcare providers to arrange for the delivery, financing, and administration of MORE
Business / Finance / Purchase Order: A written order to buy specified goods at a stipulated price. MORE
Business / Human Resources (HR) / Qualified Domestic Relations Order (QDRO): An order, decree, judgment or administrative notice (including a settlement agreement) that establishes the rights of another person (the "alternate payee") to benefits; issued by a domestic relations MORE