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.
Definition of LUX. : a unit of illumination equal to the direct illumination on a surface that is everywhere one meter from a uniform point source of one candle intensity or equal to one lumen per square meter.See lux defined for kids.ADVERTISEMENT.ux. noun \ËlÉks\. plural lux or luxÂ·es. : a unit of illumination equal to the direct illumination on a surface that is everywhere one meter from a uniform point source of one candle intensity or equal to one lumen per square meterâcalled also meter-candle.