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.
Definition of musical for Students. 1  1 : having to do with music or the writing or performing of music musical instruments. 2  2 : pleasing like music a musical voice. 3  3 : fond of or talented in music a musical family. 4  4 : set to music a musical play.