Subfornical organ - definition of Subfornical organ by the Free Online Dictionary, Thesaurus and Encyclopedia.

or·gan (ôr

1. Music

a. An instrument consisting of a number of pipes that sound tones when supplied with air and a keyboard that operates a mechanism controlling the flow of air to the pipes. Also called pipe organ.

b. Any one of various other instruments, such as the electronic organ, that resemble a pipe organ either in mechanism or sound.

2. Biology A differentiated part of an organism, such as an eye, wing, or leaf, that performs a specific function.

3. An instrument or agency dedicated to the performance of specified functions: The FBI is an organ of the Justice Department.

4. An instrument or a means of communication, especially a periodical issued by a political party, business firm, or other group.

[Middle English, from Old French organe and from Old English organe, both from Latin organum, tool, instrument, from Greek organon; see werg- in Indo-European roots.]

organ

Noun

1. a part in animals and plants that is adapted to perform a particular function, for example the heart or lungs

a. a musical keyboard instrument which produces sound by forcing air through pipes of a variety of lengths

b. Also called: (electric organ) a keyboard instrument which produces similar sounds electronically

3. a means of communication, such as a newspaper issued by a specialist group or party

4. Euphemistic a penis [Greek organon tool]

organ (ôr

A distinct part of an organism that performs one or more specialized functions. Examples of organs are the eyes, ears, lungs, and heart of an animal, and the roots, stems, and leaves of a plant.

ThesaurusLegend: Synonyms Related Words Antonyms

Noun	1.	organ - a fully differentiated structural and functional unit in an animal that is specialized for some particular function ovipositor - egg-laying tubular structure at the end of the abdomen in many female insects and some fishes siphon, syphon - a tubular organ in an aquatic animal (especially in mollusks) through which water can be taken in or expelled comb-plate, ctene - a locomotor organ consisting of a row of strong cilia whose bases are fused wing - a movable organ for flying (one of a pair) invertebrate foot, foot - any of various organs of locomotion or attachment in invertebrates sucker - an organ specialized for sucking nourishment or for adhering to objects by suction stinger - a sharp organ of offense or defense (as of a wasp or stingray or scorpion) often connected with a poison gland body part - any part of an organism such as an organ or extremity contractile organ, contractor - a bodily organ that contracts anlage, primordium - an organ in its earliest stage of development; the foundation for subsequent development vital organ, vitals - a bodily organ that is essential for life effector - an organ (a gland or muscle) that becomes active in response to nerve impulses external organ - an organ that is situated on or near the surface of the body internal organ, viscus - a main organ that is situated inside the body sense organ, sensory receptor, receptor - an organ having nerve endings (in the skin or viscera or eye or ear or nose or mouth) that respond to stimulation glossa, lingua, tongue, clapper - a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity organ of speech, speech organ, vocal organ - any of the organs involved in speech production crystalline lens, lens of the eye, lens - biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focuses light on the retina gland, secreter, secretor, secretory organ - any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream cell organ, cell organelle, organelle - a specialized part of a cell; analogous to an organ; "the first organelle to be identified was the nucleus" end organ - a specialized structure at the peripheral end of some motor or sensory nerve fibers lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; "ear lobe" reproductive organ, sex organ - any organ involved in sexual reproduction target organ - (radiology) organ intended to receive the therapeutic dose of a radioactive substance taret organ - (endocrinology) organ most affected by a particular hormone erectile organ - an organ containing erectile tissue
	2.	organ - a government agency or instrument devoted to the performance of some specific function; "The Census Bureau is an organ of the Commerce Department" bureau, federal agency, government agency, agency, office, authority - an administrative unit of government; "the Central Intelligence Agency"; "the Census Bureau"; "Office of Management and Budget"; "Tennessee Valley Authority"
	3.	organ - (music) an electronic simulation of a pipe organ electric organ, electronic organ, Hammond organ electronic instrument, electronic musical instrument - a musical instrument that generates sounds electronically music - an artistic form of auditory communication incorporating instrumental or vocal tones in a structured and continuous manner
	4.	organ - a periodical that is published by a special interest group; "the organ of the communist party" periodical - a publication that appears at fixed intervals house organ - a periodical published by a business firm for its employees and customers
	5.	organ - 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 pipe organ keyboard - device consisting of a set of keys on a piano or organ or typewriter or typesetting machine or computer or the like keyboard instrument - a musical instrument that is played by means of a keyboard organ pipe, pipework, pipe - the flues and stops on a pipe organ foot lever, foot pedal, treadle, pedal - a lever that is operated with the foot clavier, piano keyboard, fingerboard - a bank of keys on a musical instrument stop - (music) a knob on an organ that is pulled to change the sound quality from the organ pipes; "the organist pulled out all the stops" wind instrument, wind - a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath
	6.	organ - a free-reed instrument in which air is forced through the reeds by bellows harmonium, reed organ free-reed instrument - a wind instrument with a free reed