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 music for English Language Learners. : 1  sounds that are sung by voices or played on musical instruments. : 2  written or printed symbols showing how music should be played or sung. : 3  the art or skill of creating or performing music.