organ

Etymology

From Middle English organe, from Old French organe, from Latin organum, from Ancient Greek ὄργανον (órganon, “an instrument, implement, tool, also an organ of sense or apprehension, an organ of the body, also a musical instrument, an organ”), from Proto-Indo-European *werǵ-. Doublet of organon, organum, and orgue.

noun

1. The larger part of an organism, composed of tissues that perform similar functions.
   bodily organs
   vital organ
   No matter the extraordinary progress that has been made in heart surgery over the past century, the heart remains a vulnerable organ. 2018, Sandeep Jauhar, Heart: a History, page 98
2. (by extension) A body of an organization dedicated to the performing of certain functions.
3. (music) A musical instrument that has multiple pipes which play when a key is pressed (the pipe organ), or an electronic instrument designed to replicate such.
4. An official magazine, newsletter, or similar publication of an organization.
5. Short for organ pipe cactus.
6. A government organization; agency; authority.
7. (slang) The penis.
   If the Snake has an unmistakeable resemblance to the male organ in its active state, the foliage of the tree or bush is equally remindful of the female. 1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., page 81
8. (historical, military) An Asian form of mitrailleuse.
   Lieutenant Roberts was also severely wounded by a missile, or weapon called an Organ, which is composed of about thirty-six gun barrels so joined as to fire at once. 1790, H. Compton, A particular account of the European military adventurers of Hindustan, from 1784 to 1803, page 61

verb

1. (obsolete, transitive) To supply with an organ or organs; to fit with organs.
   Thou art elemented and organ'd for other apprehensions. 1681, Thomas Manningham, Two Discourses