Best Answer: A PhD is a research based degree. Physicians are MDs, Medical Doctors or DOs, Osteopathic Doctors. So to become a physician, you do not need a PhD. Generally, PhDs are awarded in fields outside of medicine. Also, while NPs and Physician Assistants can prescribe medication, they only practice under the supervision of an MD or DO. That is, there are only two types of doctor.
Princeton's WordNet(4.75 / 4 votes)Rate this definition: 1  light, illumination(noun) a condition of spiritual awareness; divine illumination. 2  illumination(noun) the degree of visibility of your environment. 3  clarification, elucidation, illumination(noun) an interpretation that removes obstacles to understanding.
A dimly lit street. A dimly lit street. The definition of dim is not bright, somewhat dark or unclear. An example of something dim is a fading light. Dim is defined as headlights on a low beam. An example of a dim is a low level headlight beam on a car. Dim means to make or become darker. An example of dim is to lower the lights.