The term MED has two crossword solutions, NEUR and PREFIX. The PREFIX solution refers to the PREFIX 'med-, ' which is derived from the Latin word 'medius, ' meaning middle or between. This PREFIX is used to form words that refer to something in the middle or between two extremes. For example, the word 'MEDIATE' means to settle a dispute between two parties. The second solution, NEUR, is an abbreviation for the word 'neurology, ' which is the branch of medicine that deals with the diagnosis and treatment of disorders of the nervous system.