1.Definition: (music) an electronic simulation of a pipe organ

Category: Objects

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

Related Noun(s):harmonium

Category: Objects

3.Definition: a fully differentiated structural and functional unit in an animal that is specialized for some particular function

Category: General

4.Definition: a government agency or instrument devoted to the performance of some specific function

"The Census Bureau is an organ of the Commerce Department"

Category: General

5.Definition: a periodical that is published by a special interest group

"The organ of the communist party"

Category: General

6.Definition: 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

Category: Objects