System
SYS'TEM, noun [Latin systema; Gr. to set.]
1. An assemblage of things adjusted into a regular whole; or a whole plan or scheme consisting of many parts connected in such a manner as to create a chain of mutual dependencies; or a regular union of principles or parts forming one entire thing. Thus we say, a system of logic, a system of philosophy, a system of government, a system of principles, the solar system the Copernican system a system of divinity, a system of law, a system of morality, a system of husbandry, a system of botany or of chimistry.
2. Regular method or order.
3. In music, an interval compounded or supposed to be compounded of several lesser intervals, as the fifth octave, etc. the elements of which are called diastems.