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

(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.

(mathematics) The sequence in which the various operations in a mathematical expression are to be evaluated.

plural of operating system

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

present participle of co-operate

Third-person singular simple present indicative form of co-operate

simple past tense and past participle of cooperate

Alternative form of nonoperational

(calculus) The study of calculus from the perspective of the theory of operators.