Mindblown: a blog about philosophy.
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Substandard
Unable to meet a generally accepted benchmark for quality.
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Substance dependence disorder
An addictive disorder of compulsive drug use. It is marked by a cluster of behavioral and physiological symptoms that indicate continual use of the substance despite significant related problems. Patients develop a tolerance for the substance and require progressively greater amounts to elicit the effects desired. In addition, patients experience physical and psychological signs and…
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Reticular substance
The skein of threads present in some red blood cells. These are visible only when the cells are appropriately stained.
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Pressor substance
A substance that elevates arterial blood pressure. Any substance that elevates blood pressure.
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Posterior perforated substance
A triangular area forming the floor of the interpeduncular fossa. It lies immediately behind the corpora mammillaria and contains numerous openings for blood vessels.
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Low threshold substance
A substance such as urea or uric acid that is excreted by the kidney from the blood almost in its entirety. It occurs in the urine in high concentrations.
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Ketogenic substance
A substance that, in its metabolism, gives rise to ketone bodies.
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High threshold substance
A substance such as glucose or sodium chloride present in the blood and excreted by the kidney only when its concentration exceeds a certain level.
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Colloid substance
Jelly-like substance in colloid degeneration.
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Chromophilic substance
A substance found in the cytoplasm of certain cells that stains similar to chromatin with basic dyes. It includes Nissl bodies of neurons and granules in serozymogenic cells.
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