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.
If you earn a pro rata salary for working 25 hours per week, you will work a total of 1,300 hours annually. In this case, your hours worked are equal to 62.5 percent of a full-time employee's hours (1,300/2,800 = .625), so you will earn 62.5 percent of a full-time salary.alculation. To calculate your pro rata salary, you need to know what a full-time employee in your position makes annually, how many hours you will work each week and how many weeks you will work each year.