epidemiological model. a mathematical model, which may be a computer simulation model, of a disease for the purpose of studying the behavior of the disease in a variable animal population under variable conditions of climate, density of population, mix of population, and so on.. The model is based on a series of linear equations with a linear equation, called the objective function, as the desired end. Such an end could, in the determination of lowest cost rations, be the total cost of each ration. mathematical model.
(Limited)' mean. Ltd., or Limited, is a suffix that follows the name of a company, indicating it is a private limited company. This is an incorporation available under British, Irish and some Commonwealth countries' laws. In a limited company, shareholders' liability is limited to the capital they originally invested.
Limited company. A business structure used in Europe and Canada, in which shareholder responsibility for company debt is limited, usually to the amount he/she has invested in the company. In some cases, the liability of shareholders is limited to specific pre-determined amounts (which are stated in a memorandum).