Mechanism

From the source i found, mechanism is like a system of parts that operate or interact like those of a machine. Mechanism has many streams such as it can be used in Biology, Psychology, Phillosophy. The meaning of mechanism can be the arrangement of connecting part in the machine. Besides that, a habitual manner of acting to achieve an end. For the Biology, it can be meant like explaining how the creature can be created. For psychology, A usually unconcious mental and emotional pattern that shapes behavior in a given situation / environment. For Phillosophy, the doctrine that all natural phenomena are explicable by material causes and mechanical principles. Mechanism is always related to engineering. From mechanism word, it develops into mechanical engineering (machine), mechanical pencil, etc. So, the conclusion is mechanism is the agency / means by which an effect is produced / a purpose is accomplished.