| dyschondrosteosis | A bone dysplasia characterised by bowing of the radius, dorsal dislocation of the distal ulna and proximal carpal bones, and mesomelic dwarfism; autosomal dominant inheritance. Synonym: Leri's pleonosteosis, Leri-Weill disease, Leri-Weill syndrome. Origin: dys-+ G. Chondros, cartilage, + osteon, bone, + -osis, condition (05 Mar 2000) |
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| dyschroia | A bad complexion; discoloration of the skin. Origin: dys-+ G. Chroia, chroa, colour (05 Mar 2000) |
| dyschromatopsia | A condition in which the ability to perceive colours is not fully normal. Compare: anomalous trichromatism, dichromatism, monochromatism, chromatopsia. Origin: dys-+ G. Chroma, colour, + opsis, vision (05 Mar 2000) |
| dyschromatosis | An asymptomatic anomaly of pigmentation occurring among the Japanese; may be localised or diffuse. Origin: dys-+ G. Chroma, colour, + -osis, condition (05 Mar 2000) |
| dyschromia | Any abnormality in the colour of the skin. (05 Mar 2000) |
| dyscinesia | <neurology> The impairment of the power of voluntary movement, resulting in fragmentary or incomplete movements. Origin: Gr. Dyskinesia = difficulty of moving (18 Nov 1997) |
| dyscoimesis | A form of insomnia marked by difficulty or delay in falling asleep. Origin: dys-+ G. Koimesis, a sleeping, fr. Koimao, to put to sleep (05 Mar 2000) |
| dyscontrol | <psychology> An uncommon disorder that begins in early childhood, characterised by repeated acts of violent, aggressive behaviour in otherwise normal persons that is markedly out of proportion to the event that provokes it. Synonym: dyscontrol, episodic dyscontrol syndrome. (05 Mar 2000) |
| dyscoria | Abnormality in the shape of the pupil. Origin: dys-+ G. Kore, pupil of eye (05 Mar 2000) |
| dyscrasia | A term formerly used to indicate an abnormal mixture of the four humours, in surviving usages it now is roughly synonymous with disease or pathologic condition. Origin: Gr. Dyskrasia = bad temperament (18 Nov 1997) |
| dyscrasic | Pertaining to or affected with dyscrasia. (05 Mar 2000) |
| dyscrasic fracture | An obsolete term for a fracture occurring in general malnutrition. (05 Mar 2000) |
| dyscrasite | <chemical> A mineral consisting of antimony and silver. Origin: Gr. Bad + compound. Source: Websters Dictionary (01 Mar 1998) |
| dysdiadochokinesia | Impairment of the ability to perform rapidly alternating movements. Origin: dys-+ G. Diadochos, working in turn, + kinesis, movement (05 Mar 2000) |
| dysdiadochokinesis | Inability to perform rapid alternating movements. One of the clinical manifestations of cerebellar dysfunction. See: dysdiadochokinesia. Compare: diadochokinesia. Synonym: adiadochocinesia, adiadochocinesis, dysdiadochokinesis. Origin: G. A-priv. + diadochos, successive, + kinesis, movement (05 Mar 2000) |