Symptoms of peritoneal mesothelioma include: 1  Abdominal pain and swelling. 2  Loss of appetite (anorexia) 3  Weight loss â especially if unexpected or sudden.  Ascites â a buildup of fluid in the 1  abdomen. Anemia â most often in women.  Bowel 1  obstruction. 2  Fever.  Nausea.
a wave propagated at the speed of light by the periodic variations of electric and magnetic fields. electromagnetic wave. A wave of energy consisting of oscillating electric and magnetic fields. Radio waves, light waves, and x-rays are electromagnetic waves.
Electromagnetic radiation (EM radiation or EMR) is the radiant energy released by certain electromagnetic processes. Visible light is electromagnetic radiation, as is invisible light, such as radio, infrared, and X-rays. Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields that propagate at the speed of light through a vacuum.