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noun or·gan \ˈȯr-gən\

Simple Definition of organ

  • : a part of the body (such as the heart or liver) that has a particular function

  • —used as a polite way of saying penis

  • : a musical instrument that has a keyboard and pipes of different lengths and that makes sound by pushing air through the pipes

Full Definition of organ

  1. 1 a archaic :  any of various musical instruments; especially :  wind instrument b (1) :  a keyboard instrument in which sets of pipes are sounded by compressed air and produce a variety of timbres —called also pipe organ (2) :  reed organ (3) :  an electronic keyboard instrument that approximates the sounds and resources of the pipe organ (4) :  any of various similar cruder instruments

  2. 2 a :  a differentiated structure (as a heart, kidney, leaf, or stem) consisting of cells and tissues and performing some specific function in an organism b :  bodily parts performing a function or cooperating in an activity <the eyes and related structures that make up the visual organs>

  3. 3 :  a subordinate group or organization that performs specialized functions <the various organs of government>

  4. 4 :  periodical

Examples of organ

  1. the legislative organ of our government

  2. <that newspaper is intended as an organ for the whole university community>

Origin of organ

Middle English, partly from Old English organa, from Latin organum, from Greek organon, literally, tool, instrument; partly from Anglo-French organe, from Latin organum; akin to Greek ergon work — more at work

First Known Use: before 12th century

Rhymes with organ


combining form or·gan

Definition of organ-

  1. 1 :  organ <organogenesis>

  2. 2 :  organic <organomercurial>

Variants of organ-

or organo-

Origin of organ-

Greek organon

Medical Dictionary


noun or·gan \ˈȯr-gən\

Medical Definition of organ

  1. :  a differentiated structure (as a heart or kidney) consisting of cells and tissues and performing some specific function in an organism


combining form or·gan

Medical Definition of organ-

  1. 1:  organ <organelle> <organogenesis>

  2. 2:  organic <organomercury>

Variants of organ-

or organo-

Seen and Heard

What made you want to look up organ? Please tell us where you read or heard it (including the quote, if possible).


February 10, 2016

to put in good humor

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