organ

Wind instrument whose sound is produced by means of pipes arranged in sets supplied with air from a bellows and controlled from a large complex musical keyboard.

(music) an electronic simulation of a pipe organ.

A free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows.

A fully differentiated structural and functional unit in an animal that is specialized for some particular function.

A government agency or instrument devoted to the performance of some specific function.

“The Census Bureau is an organ of the Commerce Department”

A periodical that is published by a special interest group.

“the organ of the communist party”