| ET | educational therapy; effective temperature; ejection time; embryo transfer; endothelin; endotoxin; e... |
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| ET | 1) Essential Thrombocytosis 2) Embryo Transfer |
| EAA | electroacupuncture analgesia; Epilepsy Association of America; essential amino acid; excitatory amin... |
| EACH | essential access community hospital |
| EFA | Epilepsy Foundation of America; essential fatty acid; extrafamily adoptee |
| EMEM | Eagle's Minimal Essential Medium |
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| EFA | Essential Fatty Acid |
| EFAD | Essential Fatty Acid Deficient |
| EH | Essential Hypertension |
| EMC | Essential Mixed Cryoglobulinemia |
| essential phthisis bulbi | A softening of the eyeball (ophthalmomalacia) and reduction in size, not due to inflammation. (05 Mar 2000) |
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| phthisis bulbi | Shrinkage of the eyeball after uveitis or other inflammatory disease. (05 Mar 2000) |
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| aneurysmal phthisis | The clinical picture of chest pain, cough with or without sputum, and haemoptysis sometimes produced by aortic aneurysm; reminiscent of an advanced tuberculous syndrome. (05 Mar 2000) |
| marble cutters' phthisis | An obsolete term for calcicosis. (05 Mar 2000) |
| phthisis | <medicine> A wasting or consumption of the tissues. The term was formerly applied to many wasting diseases, but is now usually restricted to pulmonary phthisis, or consumption. See Consumption. Fibroid phthisis. See Fibroid. Origin: L, fr. Gr, fr. To pass or waste away: cf. F. Phthisie. Source: Websters Dictionary (01 Mar 1998) |
| benign essential tremor | A benign tremor inherited as a dominant character; it may be a rapid oscillation resembling that seen in thyrotoxicosis, a coarse tremor during rest and inhibited by a voluntary effort, or one which appears only upon movement. Synonym: benign essential tremor, familial tremor. (05 Mar 2000) |
| drugs, essential | Drugs considered essential to meet the health needs of a population as well as to control drug costs. (world health organization action programme on essential drugs, 1994, p3) (12 Dec 1998) |
| osteolysis, essential | Syndromes of bone destruction where the cause is not obvious such as neoplasia, infection, or trauma. The destruction follows various patterns: massive (gorham disease), multicentric (hajdu-cheney syndrome, winchester syndrome), or carpal/tarsal. (12 Dec 1998) |
| Eagle's minimum essential medium | A tissue culture medium similar to Eagle's basal medium but with different amounts and a few exclusions (e.g., antibiotics and phenol red). (05 Mar 2000) |
| essential | 1. Belonging to the essence, or that which makes an object, or class of objects, what it is. "Majestic as the voice sometimes became, there was forever in it an essential character of plaintiveness." (Hawthorne) 2. Hence, really existing; existent. "Is it true, that thou art but a a name, And no essential thing?" (Webster (1623)) 3. Important in the highest degree; indispensable to the attainment of an object; indispensably necessary. "Judgment's more essential to a general Than courage." (Denham) "How to live? that is the essential question for us." (H. Spencer) 4. Containing the essence or characteristic portion of a substance, as of a plant; highly rectified; pure; hence, unmixed; as, an essential oil. "Mine own essential horror." 5. Necessary; indispensable; said of those tones which constitute a chord, in distinction from ornamental or passing tones. 6. <medicine> Idiopathic; independent of other diseases. <biology> Essential character, a class of volatile oils, extracted from plants, fruits, or flowers, having each its characteristic odour, and hot burning taste. They are used in essences, perfumery, etc, and include many varieties of compounds; as lemon oil is a terpene, oil of bitter almonds an aldehyde, oil of wintergreen an ethereal salt, etc.; called also volatile oils in distinction from the fixed or nonvolatile. Origin: Cf. F. Essentiel. See Essence. Source: Websters Dictionary (01 Mar 1998) |
| essential albuminuria | A collective term for types that are not the result of pathologic changes in the kidneys. Synonym: essential albuminuria. (05 Mar 2000) |
| essential amino acid | <biochemistry> Those amino acids that cannot be synthesised by an organism and must therefore be present in the diet. The term is often applied anthropocentrically to those amino acids required by humans (Ileu, Leu, Lys, Met, Phe, Thr, Try, & Val), though rats need two more (Arg & His). (18 Nov 1997) |
| essential amino acids | Alpha-amino acids nutritionally required by an organism and which must be supplied in its diet (i.e., cannot be synthesised by the organism) either as free amino acid or in proteins. (05 Mar 2000) |
| essential anaemia | An obsolete term for pernicious anaemia; also used formerly for any type of anaemia of unknown mechanism. (05 Mar 2000) |
| essential anisocoria | A common (20% of normals) benign inequality of the pupils that may change from one hour to the next. Synonym: essential anisocoria, physiologic anisocoria, simple-central anisocoria. (05 Mar 2000) |
| essential bradycardia | A slow pulse for which no cause can be discovered. Synonym: idiopathic bradycardia. (05 Mar 2000) |
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