dys- +

Pertaining to faults of speech arising from a disease.

A speech defect involving incorrect phrase construction, leading to infantile speech or a telegraphic style; an aphasic disorder that impairs syntax rather than vocabulary; also agrammatism.

1. The inability to write coherently (as a manifestation of brain damage).
2. Writer's cramp.
3. In children, difficulty in learning to write.

Disordered liver function.

1. Any disturbance in sweat production or excretion.
2. A recurrent vesicular eruption on the skin of the hands and feet marked by intense itching.

1. A disorder of the sweating apparatus.
2. Any disturbance in sweat production or sweat excretion.
3. A disease of the sweat-glands, in which the sweat is retained (instead of perspiring) and produces swellings.

1. A sleeping disorder.
2. Difficult or restless sleep.

The abnormality of the nucleus of a cell.

1. A defect in the ability to perform voluntary movement.
2. A class of diseases in which voluntary motion is impeded or handicapped.
3. Distortion of voluntary movements; involuntary muscular activity such as a tic, spasm, or myoclonus.

Derangement or impediment in speech; specifically, that which is due to defects in the organs of speech or motor nerves.

1. Referring to a condition in which an individual with normal vision is unable to interpret written language.
2. Relating to difficulty in reading resulting from defects in the brain; specifically, word blindness.

1. Great difficulty or disruption of the ability to learn to read or to spell.
2. Difficulty in reading due to defects in the brain; specifically, word blindness.
3. An imprecise term concerning a condition in which an individual with normal vision is unable to interpret written language. 4. Impaired reading ability with a competence level below that expected on the basis of the individual’s level of intelligence, and in the presence of apparent normal vision and letter recognition and normal recognition of the meanings of pictures and objects.

A few clarifications regarding dyslexia

Two commonly held beliefs about dyslexia are that children with it see letters or words backward, and that the problem is linked to intelligence.

Both beliefs are considered to be wrong. The problem is a linguistic one, not a visual one, in dyslexia; and dyslexia in no way stems from any lack of intelligence. People with severe dyslexia can be and have been known to be of superior intelligence.

In fact, the effects of dyslexia vary from person to person. The only shared trait among people with dyslexia is that they read at levels significantly lower than is typical for people of their ages. Dyslexia is not the same as reading retardation which may reflect mental retardation or cultural deprivation.

A disorder of fat metabolism.

A “bad place (hard-to-place) lizard” from Late Jurassic or Late Cretaceous North America (Wyoming). Dyslocosaurus is thought to be the last of an unknown line of North American sauropods. The possibility exists that its remains were improperly dated and that rather than being from the Late Cretaceous, it is actually from the Late Jurassic. Named by John Stanton McIntosh (1923-), Walter P. Coombs, Jr., and Dale Alan Russell in 1992.

1. Problems in speaking caused by problems in reasoning ability.
2. Difficulty in expressing ideas; incoherence of speech.