What does Medical JIA stand for? Hop on to get the meaning of JIA. The Medical Acronym /Abbreviation/Slang JIA means Juvenile Idiopathic Arthritis. by AcronymAndSlang.com
Staff (music) In standard Western musical notation, the staff, or stave, [1] is a set of five horizontal lines and four spaces that each represent a different musical pitchâor, in the case of a percussion staff, different percussion instruments.
Music. 1  a musical sound of definite pitch, consisting of several relatively simple constituents called partial tones, the lowest of which is called the fundamental tone and the others harmonics or overtones. 2  an interval equivalent to two semitones; a whole tone; a whole step.