| dysplastic nevus | <syndrome> Clinically atypical nevi (usually exceeding 5 mm in diameter and having variable pigmentation and ill defined borders) with an increased risk for development of non-familial cutaneous malignant melanoma. Biopsies show melanocytic dysplasia. Nevi are clinically and histologically identical to the precursor lesions for melanoma in the b-k mole syndrome. (12 Dec 1998) |
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| dysplastic nevus syndrome | <syndrome> Clinically atypical nevi (usually exceeding 5 mm in diameter and having variable pigmentation and ill defined borders) with an increased risk for development of non-familial cutaneous malignant melanoma. Biopsies show melanocytic dysplasia. Nevi are clinically and histologically identical to the precursor lesions for melanoma in the b-k mole syndrome. (12 Dec 1998) |
| dyspna | <medicine> Difficulty of breathing. Origin: L, fr. Gr, fr. Short of breath; pref. Ill, hard +, breathing, to blow, breathe: cf. F. Dyspnee. Source: Websters Dictionary (01 Mar 1998) |
| dyspnea | <symptom> Shortness of breath, difficult or laboured breathing. Origin: Gr. Dyspnoia = difficulty of breathing (18 Nov 1997) |
| dyspnea, paroxysmal | A form of respiratory distress related to posture (especially reclining at night) and usually attributed to congestive heart failure with pulmonary oedema. It appears suddenly at night, usually wakening the patient after an hour or two of sleep. It is also called paroxysmal nocturnal dyspnea. (12 Dec 1998) |
| dyspneic | Out of breath; relating to or suffering from dyspnea. (05 Mar 2000) |
| dyspnoea | <symptom> Shortness of breath, difficult or laboured breathing. Origin: Gr. Dyspnoia = difficulty of breathing (18 Nov 1997) |
| dyspnoic | <medicine> Affected with shortness of breath; relating to dyspna. Source: Websters Dictionary (01 Mar 1998) |
| dyspraxia | Impaired or painful function of any organ of the body. (12 Dec 1998) |
| dysprosium | <chemical> Dysprosium. An element of the rare earth family that has the atomic symbol dy, atomic number 66, and atomic weight 162.50. Dysprosium is a silvery metal used primarily in the form of various salts. Chemical name: Dysprosium (12 Dec 1998) |
| dysproteinaemia | An abnormality in plasma proteins, usually in immunoglobulins. (05 Mar 2000) |
| dysproteinaemic | Relating to dysproteinaemia. (05 Mar 2000) |
| dysproteinaemic retinopathy | Retinal venous congestion due to increased blood viscosity in dysproteinaemia. (05 Mar 2000) |
| dysraphism | Dysraphia Defective fusion, especially of the neural folds, resulting in status dysraphicus. Origin: dys-+ G. Rhaphe, suture (05 Mar 2000) |
| dysrhythmia | Defective rhythm. See also entries under rhythm. Compare: arrhythmia. Origin: dys-+ G. Rhythmos, rhythm (05 Mar 2000) |
| dyszoospermia |
(dys
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| dystrophic |
(dys
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| dysuric |
(dys
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| dye dilution curve |
an indicator dilution curve in which the indicator is a dye, usually indocyanine green; it is used in studies of cardiac output and other aspects of cardiovascular function.
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| dystrypsia |
(dys
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