ORGAN

noun see: work Date: before 12th century 1. any of various musical instruments, b. a keyboard instrument in which sets of pipes are sounded by compressed air and produce a variety of timbres, reed ~ , an electronic keyboard instrument that approximates the sounds and resources of the pipe ~, any of various similar cruder instruments, 2. a differentiated structure (as a heart, kidney, leaf, or stem) consisting of cells and tissues and performing some specific function in an ~ism, bodily parts performing a function or cooperating in an activity , a subordinate group or ~ization that performs specialized functions , periodical