Physics. the distance, measured in the direction of propagation of a wave, between two successive points in the wave that are characterized by the same phase of oscillation. on the same wavelength, in sympathy or rapport: We seemed to be on the same wavelength from the moment we met.
Causes of Elbow Pain. Elbow pain is sometimes due to arthritis, but in general, most elbow pain results from overuse injuries. Sports or any activities and professions that require repetitive hand, wrist or arm movements are more prone to elbow injury. Common causes of elbow pain are bursitis, elbow strains, and arthritis.
Tennis elbow or golfer's elbow. Tennis elbow and golfer's elbow are conditions that cause pain around the outside or inside of the elbow. They often occur after strenuous overuse of the muscles and tendons near the elbow joint (for example, after playing tennis or golf).epetitive strain injury may be diagnosed if your arm or elbow pain seems to be caused by a repetitive task and then fades when the task is stopped. It often occurs in people who work with computers or carry out repetitive manual work.