An act of performing surgery may be called a surgical procedure, operation, or simply surgery. In this context, the verb operate means to perform surgery. The adjective surgical means pertaining to surgery; e.g. surgical instruments or surgical nurse.
My definition: Pro rata, when it comes to jobs, generally refers to pay. Say the salary is '$40,000 per annum-pro rata', it will mean that if you only work part time, you get part of the pay.A standard week is (about) 40 hours, so the pay for 20 hours will be $20,000 per annum.y definition: Pro rata, when it comes to jobs, generally refers to pay. Say the salary is '$40,000 per annum-pro rata', it will mean that if you only work part time, you get part of the pay.
Calculation. To arrive at your pro rata salary, you must know what the job pays on a full-time basis, what your employer views as full-time hours, the number of weeks you will be working during the year and your required work hours per week.n terms of salary, pro rata refers to the proportion, or percentage, a part-time employee would receive if she worked full-time. Pro rata may also apply when an employer makes certain deductions from your salary.