| EAA | electroacupuncture analgesia; Epilepsy Association of America; essential amino acid; excitatory amin... |
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| EACH | essential access community hospital |
| EFA | Epilepsy Foundation of America; essential fatty acid; extrafamily adoptee |
| EFAD | essential fatty acid deficiency |
| EH | enlarged heart; external hyperalimentation; epidermolytic hyperkeratosis; epoxide hydratase; essenti... |
| essential food factors | Those substances required in the diet: certain amino acids and unsaturated fatty acids, vitamins, essential minerals, etc. (05 Mar 2000) |
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| essential gene | <genetics> Any gene that, if it does not workcorrectly, kills the organism. (09 Oct 1997) |
| essential hypertension | Hypertension without known cause. Synonym: idiopathic hypertension, primary hypertension. (05 Mar 2000) |
| essential oils | Plant products, usually somewhat volatile, giving the odours and tastes characteristic of the particular plant, thus possessing the essence, e.g., citral, pinene, camphor, menthane, terpenes; usually, the steam distillates of plants or oils of plants obtained by pressing out the rinds of a particular plant. See: volatile oil. (05 Mar 2000) |
| essential phthisis bulbi | A softening of the eyeball (ophthalmomalacia) and reduction in size, not due to inflammation. (05 Mar 2000) |
| essential pruritus | Itching that occurs independently of skin lesions. (05 Mar 2000) |
| essential tachycardia | Persistent rapid action of the heart due to no discoverable organic lesion. (05 Mar 2000) |
| essential telangiectasia | Localised capillary dilation of undetermined origin. Synonym: angioma serpiginosum. (05 Mar 2000) |
| essential thrombocythaemia | A rare condition related to polycythaemia rubra vera characterised by the production of large numbers of abnormal platelets. Symptoms include haemorrhage, blood clots and enlargement of the spleen. Treatment varies according to the severity of the disease. (13 Nov 1997) |
| essential thrombocytopenia | A primary form of thrombocytopenia, in contrast to secondary forms that are associated with metastatic neoplasms, tuberculosis, and leukaemia involving the bone marrow, or with direct suppression of bone marrow by the use of chemical agents, or with other conditions. (05 Mar 2000) |
| essential tremor | <neurology> A tremor that is associated with purposeful movement or motor activity. Essential tremor is the most common form of tremor with no identifiable cause. Stress, anxiety and the use of stimulants (for example caffeine, decongestants) can often make the tremor worse. Treatment is usually not necessary for this benign condition. (27 Sep 1997) |
| fatty acids, essential | Fatty acids that cannot be synthesised by the human body and must be obtained from dietary sources, e.g., linoleic acids and linolenic acids. (12 Dec 1998) |
| angle of iris | The acute angle between the iris and the cornea at the periphery of the anterior chamber of the eye. Synonym: angulus iridocornealis, angle of iris, angulus iridis, filtration angle. (05 Mar 2000) |
| anteflexion of iris | Rarely used term for an iris that is in part, folded forward after a severe iridodialysis so that the pigmented layer faces forward. (05 Mar 2000) |
| anterior surface of iris | The anterior surface of the iris of the eye. Synonym: facies anterior iridis. (05 Mar 2000) |