Definition of organ

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Organ (n.) An instrument or medium by which some important action is performed, or an important end accomplished; as, legislatures, courts, armies, taxgatherers, etc., are organs of government..

Lern More About Organ

Homosystemic :: Homosystemic (a.) Developing, in the case of multicellular organisms, from the same embryonic systems into which the secondary unit (gastrula or plant enbryo) differentiates..
Organographic :: Organographic (a.) Alt. of Organographica.
Organization :: Organization (n.) The state of being organized; also, the relations included in such a state or condition..
Disorganization :: Disorganization (v. t.) The act of disorganizing; destruction of system.
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..
Polity :: Polity (n.) The form or constitution of the civil government of a nation or state; the framework or organization by which the various departments of government are combined into a systematic whole.
Melodeon :: Melodeon (n.) A kind of small reed organ; -- a portable form of the seraphine.
Pulmonata :: Pulmonata (n. pl.) An extensive division, or sub-class, of hermaphrodite gastropods, in which the mantle cavity is modified into an air-breathing organ, as in Helix, or land snails, Limax, or garden slugs, and many pond snails, as Limnaea and Planorbis..
Family :: Family (v. t.) A group of organisms, either animal or vegetable, related by certain points of resemblance in structure or development, more comprehensive than a genus, because it is usually based on fewer or less pronounced points of likeness. In zoology a family is less comprehesive than an order; in botany it is often considered the same thing as an order..
Organic :: Organic (a.) Instrumental; acting as instruments of nature or of art to a certain destined function or end.
Morphonomy :: Morphonomy (n.) The laws of organic formation.
Organogen :: Organogen (n.) A name given to any one of the four elements, carbon, hydrogen, oxygen, and nitrogen, which are especially characteristic ingredients of organic compounds; also, by extension, to other elements sometimes found in the same connection; as sulphur, phosphorus, etc..
Tectology :: Tectology (n.) A division of morphology created by Haeckel; the science of organic individuality constituting the purely structural portion of morphology, in which the organism is regarded as composed of organic individuals of different orders, each organ being considered an individual. See Promorphology, and Morphon..
Spectacle :: Spectacle (n.) An optical instrument consisting of two lenses set in a light frame, and worn to assist sight, to obviate some defect in the organs of vision, or to shield the eyes from bright light..
Biotaxy :: Biotaxy (n.) The classification of living organisms according to their structural character; taxonomy.
Agamous :: Agamous (a.) Having no visible sexual organs; asexual.
Reedwork :: Reedwork (n.) A collective name for the reed stops of an organ.
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..
Porta :: Porta (n.) The part of the liver or other organ where its vessels and nerves enter; the hilus.
Afferent :: Afferent (a.) Bearing or conducting inwards to a part or organ; -- opposed to efferent; as, afferent vessels; afferent nerves, which convey sensations from the external organs to the brain..
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