Definition of organ

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Organ (n.) A natural part or structure in an animal or a plant, capable of performing some special action (termed its function), which is essential to the life or well-being of the whole; as, the heart, lungs, etc., are organs of animals; the root, stem, foliage, etc., are organs of plants..

Lern More About Organ

Radicated :: Radicated (a.) Having rootlike organs for attachment.
Physiological :: Physiological (a.) Of or pertaining to physiology; relating to the science of the functions of living organism; as, physiological botany or chemistry..
Hydraulicon :: Hydraulicon (n.) An ancient musical instrument played by the action of water; a water organ.
Ascidium :: Ascidium (n.) A pitcher-shaped, or flask-shaped, organ or appendage of a plant, as the leaves of the pitcher plant, or the little bladderlike traps of the bladderwort (Utricularia)..
Eudipleura :: Eudipleura (n. pl.) The fundamental forms of organic life, that are composed of two equal and symmetrical halves..
Morphosis :: Morphosis (n.) The order or mode of development of an organ or part.
Flute :: Flute (n.) A stop in an organ, having a flutelike sound..
Organ :: Organ (n.) A wind instrument containing numerous pipes of various dimensions and kinds, which are filled with wind from a bellows, and played upon by means of keys similar to those of a piano, and sometimes by foot keys or pedals; -- formerly used in the plural, each pipe being considired an organ..
Lithophyte :: Lithophyte (n.) A hard, or stony, plantlike organism, as the gorgonians, corals, and corallines, esp. those gorgonians having a calcareous axis. All the lithophytes except the corallines are animals..
Scyphophori :: Scyphophori (n. pl.) An order of fresh-water fishes inhabiting tropical Africa. They have rudimentary electrical organs on each side of the tail.
Protandric :: Protandric (a.) Having male sexual organs while young, and female organs later in life..
Motorial :: Motorial (n.) Causing or setting up motion; pertaining to organs of motion; -- applied especially in physiology to those nerves or nerve fibers which only convey impressions from a nerve center to muscles, thereby causing motion..
Mucro :: Mucro (n.) A minute abrupt point, as of a leaf; any small, sharp point or process, terminating a larger part or organ..
Tunic :: Tunic (n.) A membrane, or layer of tissue, especially when enveloping an organ or part, as the eye..
Organography :: Organography (n.) A description of the organs of animals or plants.
Mollusca :: Mollusca (n. pl.) One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or m
Transformation :: Transformation (n.) Any change in an organism which alters its general character and mode of life, as in the development of the germ into the embryo, the egg into the animal, the larva into the insect (metamorphosis), etc.; also, the change which the histological units of a tissue are prone to undergo. See Metamorphosis..
Podophyllous :: Podophyllous (a.) Having thin, flat, leaflike locomotive organs..
Intussusception :: Intussusception (n.) The act of taking foreign matter, as food, into a living body; the process of nutrition, by which dead matter is absorbed by the living organism, and ultimately converted into the organized substance of its various tissues and organs..
Median :: Median (a.) Situated in the middle; lying in a plane dividing a bilateral animal into right and left halves; -- said of unpaired organs and parts; as, median coverts..
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