a tubular organ in an aquatic animal (especially in mollusks) through which water can be taken in or expelled | 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 |
a tube running from the liquid in a vessel to a lower level outside the vessel so that gravity forces the liquid through the tube | (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 periodical that is published by a special interest group |
| a government agency or instrument devoted to the performance of some specific function |