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operant conditioning
(psychology) A technique of behavior modification through positive and negative reinforcement and positive and negative punishment.
Laplace operator
(mathematics, physics) A differential operator,denoted ∆ and defined on ℝⁿ as 𝛥=∑ᵢ₌₁ⁿ(∂²)/(∂x_i²), used in the modeling of wave propagation, heat flow and many other applications.
tour operator
A company that sells package holidays.
owner-operator
A subcontractor who may be a commercial carrier, but most often provides capacity (trucks and drivers, with or without trailers or chassis) to either commercial or private carriers under a contract for services.
operating expense
(business, accounting) Any expense incurred in running a business, such as sales and administration, as opposed to production.
operations research
(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.
operating cycle
(business) The business cycle from startup of operations to the profit; from obtaining the raw material, through designing and production, to the distribution and profits.
operating loss
(finance) Negative operating income.
operating room
A room in a hospital used for performing surgical operations.
unit operation
Any simple step in a multi-step chemical engineering process; examples include distillation, evaporation, mixing, filtration, crystallization etc.
