| dyskeratosis congenita | An x-linked syndrome occurring predominantly in males, with onset in childhood and characterised by nail dystrophy, reticular cutaneous hyperpigmentation, mucosal leukokeratosis, and pancytopenia resembling that of fanconi. It is also known as zinsser-cole-engman syndrome. (12 Dec 1998) |
|---|---|
| dyskeratotic | Relating to or characterised by dyskeratosis. (05 Mar 2000) |
| dyskinesia | <neurology> The impairment of the power of voluntary movement, resulting in fragmentary or incomplete movements. Origin: Gr. Dyskinesia = difficulty of moving (18 Nov 1997) |
| dyskinesia algera | A hysterical condition in which active movement causes pain. (05 Mar 2000) |
| dyskinesia intermittens | Intermittent disability of the limbs due to impairment of circulation. (05 Mar 2000) |
| dyskinesia, drug-induced | Abnormal movements induced as an adverse reaction of drug therapy. One particular movement disorder is the "on-off" effect. Tardive dyskinesia differs from akathisia, drug-induced in the repetitive nature of the movements rather than being associated with anxiety, restlessness, and agitation found in akathisia. (12 Dec 1998) |
| dyskinetic | Denoting or characteristic of dyskinesia. (05 Mar 2000) |
| dyskinetoplasty | Absence of an organised kinetoplast (and of kinetoplast DNA) from a flagellate protozoan cell. (18 Nov 1997) |
| dyslexia | <clinical sign> A term used to describe a condition in which an individual with normal vision is unable to properly interpret written language. Dyslexia is more common in males and is often first recognised as a reading difficulty in the first grade. Individuals can see and recognise letters but are unable to spell and write words. They have no impairment of object or picture identification. Dyslexia is not related to intelligence and in fact several famous scholars were thought to be dyslexic (for example Albert Einstein, Thomas Edison). The exact cause of dyslexia is unknown. (27 Sep 1997) |
| dyslexia, acquired | Loss of previously possessed reading facility, visual aphasia, or word blindness due to a brain lesion. (12 Dec 1998) |
| dyslexic | Relating to, or characterised by, dyslexia. (05 Mar 2000) |
| dyslogia | Impairment of speech and reasoning as the result of a mental disorder. Origin: dys-+ G. Logos, speaking, reason (05 Mar 2000) |
| dysluite | <chemical> A variety of the zinc spinel or gahnite. Origin: Gr. Ill, hard + to loose, dissolve. Source: Websters Dictionary (01 Mar 1998) |
| dyslysin | <physiology> A resinous substance formed in the decomposition of cholic acid of bile; so called because it is difficult to solve. Origin: Gr. Ill, hard + a loosing. Source: Websters Dictionary (01 Mar 1998) |
| dysmasesis | Difficulty in mastication. Origin: dys-+ G. Masesis, chewing (05 Mar 2000) |