| emphysematous | <medicine> Pertaining to, or of the nature of, emphysema; swelled; bloated. Origin: Cf. F. Emphysemateux. Source: Websters Dictionary (01 Mar 1998) |
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| emphysematous cholecystitis | <radiology> Ring of air in RUQ, Differential diagnosis: pneumatosis coli, lipomatosis of gall bladder (rare!), follow plain X-ray with ultrasound, males (3:1), especially diabetics, usually acalculous, high mortality (12 Dec 1998) |
| emphysematous cystitis | Inflammation of the bladder wall caused by gas-forming bacteria, usually secondary to diabetes mellitus. (05 Mar 2000) |
| emphysematous gangrene | <microbiology> A severe form of gangrene (tissue necrosis) caused by Clostridium infection. Also referred to as necrotising subcutaneous infection. Results in death of the subcutaneous tissues and muscle layers. See: necrotising fascitis. (27 Sep 1997) |
| emphysematous gastritis | <radiology> Rare but severe form of widespread phlegmonous gastritis secondary to, mucosal disruption, ingestion of toxic/corrosive substances (most common), alcohol abuse, trauma, gastric infarction, necrotizing enterocolitis, ulcer X-ray: linear small gas bubbles within grossly thickened wall, may be associated with gas in the portal vein prognosis: leads to cicatrical stenosis, 60-80% mortality (12 Dec 1998) |
| emphysematous phlegmon | <microbiology> A severe form of gangrene (tissue necrosis) caused by Clostridium infection. Also referred to as necrotising subcutaneous infection. Results in death of the subcutaneous tissues and muscle layers. See: necrotising fascitis. (27 Sep 1997) |
| emphyteusis | A real right, susceptible of assignment and of descent, charged on productive real estate, the right being coupled with the enjoyment of the property on condition of taking care of the estate and paying taxes, and sometimes a small rent. Origin: L, fr. Gr, lit, an implanting, fr. To plant or improve land; in + to plant. Source: Websters Dictionary (01 Mar 1998) |
| empiric | Empirical, depending upon experience or observation alone, without using scientific method or theory. (18 Nov 1997) |
| empiric risk | The chance that a disease will occur in a family based upon experience (past history, medical records, etc.) rather than theory. (12 Dec 1998) |
| empiric treatment | A treatment based on experience, usually without adequate data to support its use. (05 Mar 2000) |
| empirical | 1. Pertaining to, or founded upon, experiment or experience; depending upon the observation of phenomena; versed in experiments. "In philosophical language, the term empirical means simply what belongs to or is the product of experience or observation." (Sir W. Hamilton) "The village carpenter . . . Lays out his work by empirical rules learnt in his apprenticeship." (H. Spencer) 2. Depending upon experience or observation alone, without due regard to science and theory; said especially of medical practice, remedies, etc.; wanting in science and deep insight; as, empiric skill, remedies. Empirical formula. <chemistry> See Formula. Synonym: See Transcendental. Source: Websters Dictionary (01 Mar 1998) |
| empirical formula | In chemistry, a formula indicating the kind and number of atoms in the molecules of a substance, or its composition, but not the relation of the atoms to each other or the intimate structure of the molecule. Synonym: molecular formula. (05 Mar 2000) |
| empiricism | 1. The method or practice of an empiric; pursuit of knowledge by observation and experiment. 2. Specifically, a practice of medicine founded on mere experience, without the aid of science or a knowledge of principles; ignorant and unscientific practice; charlatanry; quackery. 3. <psychology> The philosophical theory which attributes the origin of all our knowledge to experience. Source: Websters Dictionary (01 Mar 1998) |
| empiristic | <physics> Relating to, or resulting from, experience, or experiment; following from empirical methods or data; opposed to nativistic. Source: Websters Dictionary (01 Mar 1998) |
| emplastic | A medicine causing constipation. Source: Websters Dictionary (01 Mar 1998) |