(music) The largest of all musical instruments, played from an organ console which produces its sound by sending air through whistles and/or reeds called organ pipes, by direct mechanical action, or modernly, electrically.

A tuned metal or wooden tube connected mechanically or electrically to an organ console. / An organ pipe cactus.

The residues of dead plants and animals in various stages of decomposition

plural of organized religion

A religion in which rules exist to govern the means by which adherents participate in the religion.

(medicine) A surgical operation in which an organ is moved from a donor to a recipient.

plural of organ pipe

plural of organ console

plural of pipe organ

The harmonica / The panpipes / The Jew's harp