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 pastoral or rustic musical pipe made from a reed or from the hollow stalk of some other plant. 2  a small, flexible piece of cane or metal that, attached to the mouth of any of various wind instruments, is set into vibration by a stream of air and, in turn, sets into vibration the air column enclosed in the tube of the instrument.