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(ē′gō-izm) 1. In ethics, the idea or belief that self-interest is or ought to be the motive of and end for all action. 2. Excessive self-regard with or without inflated feelings of self-importance. SEE: egotism.


(ē″gō-mā′nē-ă) [″ + Gr. mania, madness] Abnormal self-esteem and self-interest.


(ē-gŏf′ō-nē) [Gr. aix, goat, + phone, voice] An abnormal change in tone, somewhat like the bleat of a goat, heard in auscultation of the chest when the subject speaks normally. It is associated with bronchophony and may be heard over the lungs of persons with pleural effusion, or occasionally pneumonia.


(ē″gō-sin-ton′ik) [ego + syntonic] Consistent with an individual’s self-image.


(ē′gō-tizm) 1. The tendency to regard oneself more highly than is warranted by the facts, and to boast of one’s abilities or achievements. 2. An inflated and offensive sense of self-importance; conceit. SEE: egoism.


(ē″gō-trop′ik, ē″gō-trōp′ik) [ego + -tropic] Interested chiefly in one’s self; self-centered.


eosinophilic granulomatosis with polyangiitis.


The symbol for the oxidation-reduction (redox) potential. The redox potential is the electric potential energy needed to transfer a mole of electrons from an oxidant to a reductant. The use of catalysts to remove contaminants from water supplies during water treatment relies on measurements of the redox potential. It is usually referenced to the potential of a standard electrolytic cell.


The application of electronic information technology to health care by using websites providing a common set of standards across operating systems.


Enterohemorrhagic Escherichia coli.

Ehlers-Danlos syndrome

(ā′lĕrz-dan′los″) [Edvard Ehlers, Danish dermatologist, 1863–1937; H. A. Danlos, Fr. dermatologist, 1844–1912] Any of ten relatively rare inherited disorders of connective tissue (collagen and collagen-related proteins). Characteristic findings in Ehler-Danlos (E-D) syndrome depend on its subtypes. Joint hypermobility with dislocations (such as during childbirth) are a common feature of many of them. Skin disorders include velvety, loose, and easily bruised skin. Wrinkling, sagging, or cigarette-paper skin are found in other variants. Vascular disorders associated with dissections or organ ruptures are characteristic in other subtypes. Symptomatic kyphoscoliosis that restricts full breathing constitutes another variant. E-D syndrome affects about 1 birth in 5000.


Electronic health record.


(er-lik′ē-ă) [Ehrlich + -ia] A genus of gram-negative bacteria that use the adenosine triphosphate (ATP) of other cells to survive. They are the pathogenic agents responsible for influenza-like illnesses in ...

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