Category: R
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Reticulin
A fibrous protein which is one of the most important components of reticular fibres. A protein that is the major constituent of reticular fibers. An albuminoid or scleroprotein in the connective tissue framework of reticular tissue.
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Reticular fibres
Fibres in connective tissue which support, e.g., organs or blood vessels.
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Reticular
Relating to or in the form of a network.
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Rete testis
A network of channels in the testis which take the sperm to the epididymis. A network of tubules in the mediastinum testis that receives sperm through the tubuli recti from the seminiferous tubules. From the rete testis, efferent ducts convey sperm to the epididymis.
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Retention of urine
A condition in which passing urine is difficult or impossible because the urethra is blocked or because the prostate gland is enlarged.
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Retention cyst
A cyst which is formed when a duct from a gland is blocked. A cyst retaining the secretion of a gland, as in a mucous or sebaceous cyst.
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Rete
A network of veins, arteries or nerve fibres in the body. Net or meshlike structure (e.g., rete testes, network of tubes carrying sperm from the seminiferous tubules in the testes to the vasa efferentia). A network of blood vessels, nerve fibers, or other strands of interlacing tissue in the structure of an organ. The rete…
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Retch
To try to vomit without bringing any food up from the stomach. To make an involuntary attempt to vomit.
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Retardation
The process of making something slower. Slowed or incomplete development or function. The slowing up of a process. The term mental retardation is used as a synonym for mental sub-normality; it implies that the sub-normality is regarded as a delay in development rather than a qualitative defect. Psychomotor retardation is a marked slowing down of…
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Retard
To make something slower, e.g. to slow down the action of a drug.