(medicine) Curettage of the uterus.

(business, accounting) Expense which is related to the operation of a business.

(business, accounting)

plural of bastard operator from hell

(slang, computing) A rogue system administrator who abuses users of the system.

(differential geometry) A generalization of the Laplace operator; the anticommutator of the exterior derivative and the codifferential.

(telecommunications) A provider of mobile telecommunications who does not operate any physical network infrastructure, but relies on contracting with physical mobile telecom network infrastructure operators to provide mobility access.

A period during which a telecommunications service remains in an operational state.

(computing) Any simple operation, such as addition, multiplication or division, performed on floating point numbers using a single operation.

(accounting) Income after deducting operating expenses but before deducting for income taxes, interest, and depreciation and amortization.