1 Colitis is inflammation of the inner lining of the colon. 2  It may cause abdominal pain and diarrhea with or without blood. 3  Fever may be present. 4  There are numerous causes of colitis including infection, inflammatory bowel disease, ischemic, and microscopic colitis.olitis facts. 1  Colitis is inflammation of the inner lining of the colon. 2  It may cause abdominal pain and diarrhea with or without blood. 3  Fever may be present.
Definition of resonant frequency. : a frequency capable of exciting a resonance maximum in a given body or system.
Vibration and standing waves in a string, The fundamental and the first six overtones. The fundamental frequency, often referred to simply as the fundamental, is defined as the lowest frequency of a periodic waveform. In music, the fundamental is the musical pitch of a note that is perceived as the lowest partial present.