| acquired nevus | A melanocytic nevus that is not visible at birth, but appears in childhood or adult life. (05 Mar 2000) |
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| acquired pellicle | A thin film (about 1 um), derived mainly from salivary glycoproteins, which forms over the surface of a cleansed tooth crown when it is exposed to the saliva. Synonym: acquired cuticle, acquired enamel cuticle, brown pellicle, posteruption cuticle. (05 Mar 2000) |
| acquired platelet function defect | <haematology> Platelet function can be affected by a number of different disease processes including polycythaemia vera, leukaemia, myelofibrosis, renal failure, multiple myeloma and some medications (for example penicillins, salicylates, phenothiazines). Disturbed blood clotting can be manifested by: easy bruising, bleeding gums, nosebleeds, abnormal vaginal bleeding, rectal bleeding, skin rash, vomiting blood, coughing up blood or blood in the urine. A measure of bleeding time and coagulation profile will be part of the evaluation. (29 Dec 1997) |
| acquired reflex | A reflex that is gradually developed by training and association through the frequent repetition of a definite stimulus. See: conditioning. Synonym: acquired reflex, behaviour reflex, trained reflex. (05 Mar 2000) |
| acquired sensitivity | 1. <immunology> A state of hypersensitivity induced by exposure to a particular antigen (allergen) resulting in harmful immunologic reactions on subsequent exposures, the term is usually used to refer to hypersensitivity to an environmental antigen (atopic allergy or contact dermatitis) or to drug allergy. The original meaning, now obsolete, included all states of altered immunologic reactivity, immunity as well as hypersensitivity. Gell and Coombs used the term allergic reaction to mean any harmful immunologic reaction causing tissue injury. 2. <study> The medical specialty dealing with diagnosis and treatment of allergic disorders. (18 Nov 1997) |
| acquired toxoplasmosis | In adults, a form of toxoplasmosis that may result in fever, encephalomyelitis, chorioretinopathy, maculopapular rash, arthralgia, myalgia, myocarditis, and pneumonitis; a lymphadenopathic form seems to be more prevalent in adults, and such persons may manifest fever, lymphadenopathy, malaise, and headache, a form frequently found in patients with AIDS. (05 Mar 2000) |
| acquired trichoepithelioma | An enlarged follicular opening of the skin, with a keratinous plug and occasional lanugo or mature hair. Synonym: acquired trichoepithelioma. (05 Mar 2000) |
| community-acquired infections | Any infection acquired in the community, that is, contrasted with those acquired in a health care facility (cross infection). An infection would be classified as community-acquired if the patient had not recently been in a health care facility or been in contact with someone who had been recently in a health care facility. (12 Dec 1998) |
| murine acquired immunodeficiency syndrome | <syndrome> Acquired defect of cellular immunity that occurs in mice infected with mouse leukaemia viruses (mulv). The syndrome shows striking similarities with human aids and is characterised by lymphadenopathy, profound immunosuppression, enhanced susceptibility to opportunistic infections, and B-cell lymphomas. (12 Dec 1998) |
| hospital acquired pneumonia | A type of pneumonia that is caused by bacteria contracted during a hospitalisation. These hospital-acquired infections tend to be more difficult to treat due to the bacteria's relative resistance to common forms of antibiotic therapy. Risk of nosocomial (hospital-acquired) infection is a major determinant when a physician decides whether or not the risks outweigh the benefits concerning necessity for hospitalisation. (27 Sep 1997) |
| simian acquired immunodeficiency syndrome | <syndrome> Acquired defect of cellular immunity that occurs naturally in macaques infected with srv serotypes, experimentally in monkeys inoculated with srv or mason-pfiser monkey virus (mpmv), or in monkeys infected with siv. (12 Dec 1998) |
| dyslexia, acquired | Loss of previously possessed reading facility, visual aphasia, or word blindness due to a brain lesion. (12 Dec 1998) |
| immunity, maternally-acquired | Resistance to a disease-causing agent induced by the introduction of maternal immunity into the foetus by transplacental transfer or into the neonate through colostrum and milk. (12 Dec 1998) |
| feline acquired immunodeficiency syndrome | <syndrome> Acquired defect of cellular immunity that occurs in cats infected with feline immunodeficiency virus (fiv) and in some cats infected with feline leukaemia virus (felv). (12 Dec 1998) |
| abductor digiti minimi muscle of foot | Origin, lateral and medial processes of calcanean tuberosity; insertion, lateral side of proximal phalanx of fifth toe; action, abducts and flexes little toe; nerve supply, lateral plantar nerve. Synonym: musculus abductor digiti minimi pedis, abductor muscle of little toe, musculus abductor digiti quinti. (05 Mar 2000) |