present participle of co-operate

Alternative spelling of cooperatively

Any simple step in a multi-step chemical engineering process; examples include distillation, evaporation, mixing, filtration, crystallization etc.

(finance) Negative operating income.

(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.

A person who operates a telephone switchboard. / A person who provides assistance in establishing a connection, or who provides information or takes messages via the telephone.

(military) That portion of a theater of war] which an army passes over in attaining its object.

A company that sells package holidays.

(operations) The application of scientific methods and techniques to problems of decision making, especially in business management and government administration.

(business, accounting) Any expense incurred in running a business, such as sales and administration, as opposed to production.