Copy of `Dorland's Medical Dictionary`

The wordlist doesn't exist anymore, or, the website doesn't exist anymore. On this page you can find a copy of the original information. The information may have been taken offline because it is outdated.

Dorland's Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 31/12/2010, USA Words: 39128

dysfluency
(dis-floo´әn-se) the quality of being dysfluent.

dysfluent
(dis-floo´әnt) proceeding with difficulty; said of speech disorders such as stuttering.

dysfunction
(dis-funk´shәn) disturbance, impairment, or abnormality of functioning of an organ. adj., dysfunc´tional., adj. erectile dysfunction impotence. minimal brain dysfunction former name for attention-deficit/hyperactivity disorder. ...

dysfunctional uterine bleeding
bleeding from the nonmenstruating uterus when no organic lesions are present.

dysgammaglobulinemia
(dis-gam″ә-glob″u-lin-e´me-ә) an immunological deficiency state marked by selective deficiencies of one or more, but not all, classes of immunoglobulins, resulting in heightened susceptibility to those infectious diseases vulnerable to immunoglobulin-associated defense mechanisms. adj., dysgammag...

dysgenesis
(dis-jen´ә-sis) defective development; see also dysplasia and malformation. gonadal dysgenesis defective development of the gonads. Turner syndrome and its variants.

dysgerminoma
(dis″jәr-mĭ-no´mә) a solid, often radiosensitive, malignant ovarian neoplasm derived from undifferentiated germinal cells; the counterpart of seminoma of the testis.

dysgeusia
(dis-goo´zhә) distortion of the sense of taste.

dysglycemia
(dis″gli-se´me-ә) any disorder of blood sugar metabolism.

dysgnathia
(dis-na´the-ә) any oral abnormality that extends beyond the teeth and involves the maxilla or mandible, or both.

dysgonic
(dis-gon´ik) seeding badly; said of bacterial cultures that grow poorly.

dysgraphia
(dis-graf´e-ә) inability to write properly; it may be part of a language disorder due to disturbance of the parietal lobe or of the motor system.

dyshematopoiesis
(dis-he″mә-to″poi-e´sis) defective blood formation. adj., dyshematopoiet´ic., adj.

dyshesion
(dis-he´zhәn) disordered cell adherence. loss of intercellular cohesion; a characteristic of malignancy.

dyshidrosis
(dis″hĭ-dro´sis) any disorder of the eccrine sweat glands. former name for pompholyx.

dyskaryosis
(dis-kar″e-o´sis) abnormality of the nucleus of a cell. adj., dyskaryot´ic., adj.

dyskeratoma
(dis-ker″ә-to´mә) a tumor from the keratinocytes, characterized by abnormal, imperfect, or premature keratin development. warty dyskeratoma a solitary brownish red nodule with a soft, yellowish, central keratotic plug, most commonly occurring on the face, neck, ...

dyskeratosis
(dis-ker″ә-to´sis) abnormal, premature, or imperfect development of the keratinocytes. adj., dyskeratot´ic., adj.

dyskinesia
(dis″kĭ-ne´zhә) impairment of the power of voluntary movement.

dyskinesia intermittens
(dis-kĭ-ne´zhә in″ter-mĭ´tәnz) intermittent disability of the limbs caused by poor circulation.

dyskinetic cilia syndrome
primary ciliary dyskinesia.

dyslalia
(dis-la´le-ә) paralalia.

dyslexia
(dis-lek´se-ә) inability to read, spell, and write words, despite the ability to see and recognize letters; a familial disorder with autosomal dominant inheritance that occurs more frequently in males. adj., dyslex´ic., adj.

dyslipidemia
(dis-lip″id-e´me-ә) abnormality in, or abnormal amounts of, lipids and lipoproteins in the blood; see hyperlipidemia and hypolipidemia.

dyslipoproteinemia
(dis-lip″o-pro″te-ne´me-ә) the presence of abnormal concentrations of lipoproteins, or of abnormal lipoproteins, in the blood. See also hyperlipoproteinemia and hypolipoproteinemia.

dyslogia
(dis-lo´jә) impairment of speech due to a mental disorder.

dysmature infant
postmature i.

dysmaturity
(dis-mә-chldbomacr´ĭ-te) disordered development. postmaturity syndrome. pulmonary dysmaturity Wilson-Mikity syndrome.

dysmaturity syndrome
postmaturity syndrome.

dysmelia
(dis-me´le-ә) malformation of a limb or limbs due to disturbance in embryonic development.

dysmenorrhea
(dis-men″ә-re´ә) painful menstruation with cramps in the lower abdomen. adj., dysmenorrhe´al., adj.

dysmetabolism
(dis″mә-tab´o-liz-әm) defective metabolism.

dysmetria
(dis-me´tre-ә) inability to properly direct or limit motions.

dysmnesia
(dis-ne´zhә) disordered memory; as in the amnestic syndrome. adj. dysmnes´tic., adj.

dysmnesic syndrome
amnestic syndrome.

dysmorphism
(dis-mor´fiz-әm) an abnormality in the development of form or structure. ability to appear under different morphological forms. adj., dysmor´phic, adj. .

dysmorphology
(dis″mor-fol´ә-je) a branch of clinical genetics concerned with the diagnosis and interpretation of patterns of the three types of structural defects—malformation, disruption, and deformation.

dysmorphophobia
(dis-mor″fo-fo´be-ә) body dysmorphic disorder.

dysmotility
(dis-mo-til´ĭ-te) impaired or disordered motility, such as in the gastrointestinal tract.

dysmyelination
(dis″mi-ә-lin-a´shәn) breakdown or defective formation of a myelin sheath, usually involving biochemical abnormalities.

dysmyotonia
(dis″mi-o-to´ne-ә) muscular dystonia; abnormal tonicity.

dysodontiasis
(dis″o-don-ti´ә-sis) defective, delayed, or difficult eruption of the teeth.

dysontogenesis
(dis″on-to-jen´ә-sis) defective embryonic development. adj., dysontogenet´ic., adj.

dysopia
(dis-o´pe-ә) defective vision.

dysorexia
(dis″o-rek´se-ә) impaired or deranged appetite.

dysosmia
(dis-oz´me-ә) distortion of the sense of smell.

dysosteogenesis
(dis-os″te-o-jen´ә-sis) defective bone formation.

dysostosis
(dis″os-to´sis) defective ossification; a defect in the normal ossification of fetal cartilages.

dysostosis multiplex
(dis″os-to´sis mul″tĭ-pleks) Hurler syndrome.

dyspareunia
(dis″pә-roo´ne-ә) difficult or painful sexual intercourse.

dyspepsia
(dis-pep´se-ә) impairment of the power or function of digestion; usually applied to epigastric discomfort after meals. adj., dyspep´tic., adj. acid dyspepsia dyspepsia associated with excessive acidity of the stomach. nonulcer dyspepsia dyspe...

dysphagia
(dis-fa´je-ә) difficulty in swallowing; there are numerous underlying causes, including stroke and other neurologic conditions, local trauma with muscle damage, and a tumor or swelling that partially obstructs passage of food. esophageal dysphagia dysphagia caused by an abnormality...

dysphasia
(dis-fa´zhә) impairment of speech consisting in lack of coordination and failure to arrange words in their proper order; due to a central lesion; see also aphasia. Called also dysphrasia.

dysphonia
(dis-fo´ne-ә) a speech disorder consisting of imperfect articulation due to loss of muscular control after damage to the central or peripheral nervous system. See also aphasia. adj., dysphon´ic., adj.

dysphonia clericorum
(dis-fo´ne-ә kler″ĭ-kor´әm) clergyman's sore throat.

dysphoria
(dis-for´e-ә) disquiet; restlessness; malaise. adj. dysphoret´ic, dysphor´ic., adj.

dysphrasia
(dis-fra´zhә) dysphasia.

dyspigmentation
(dis-pig″mәn-ta´shәn) dyschromia.

dysplasia
(dis-pla´zhә) an abnormality of development; in pathology, alteration in size, shape, and organization of adult cells. See also dysgenesis. adj., dysplas´tic., adj.

dysplasia epiphysealis hemimelica
(dis-pla´zhә ep″e-fiz″e-a´lis hem″e-me´lĭ-kә) a rare condition characterized by swellings in the extremities, usually on the inner and outer aspects of the ankles and knees, made up of bone covered with epiphyseal cartilage, and leading to limitation of motion of the joints. Called als...

dysplasia epiphysealis multiplex
(dis-pla´zhә ep″e-fiz″e-a´lis mul´tĭ-pleks) multiple epiphyseal dysplasia.

dysplasia epiphysealis punctata
(dis-pla´zhә ep″e-fiz″e-a´lis pungk-ta´tә) chondrodysplasia punctata.

dysplasia linguofacialis
(dis-pla´zhә ling″gwo-fa″she-a´lis) oral-facial-digital syndrome.

dysplasia of cervix
cervical dysplasia.

dysplastic nevus
a type of acquired, atypical melanocytic nevus with an irregular border, indistinct margin, and mixed coloring, characterized by dysplastic melanocytes in the epidermis. Particularly in patients with other family who have these lesions, they may be precursors of malignant melanoma. Called also atypical nevus.

dysplastic nevus syndrome
the occurrence of dysplastic nevi in persons having or at risk for having familial malignant melanoma. Called also atypical mole syndrome and atypical nevus syndrome.

dyspnea
(disp-ne´ә) (disp´ne-ә) breathlessness or shorthess of breath; labored or difficult breathing. It is a sign of a variety of disorders and is primarily an indication of inadequate ventilation or of insufficient amounts of oxygen in the circulating blood. adj., dyspne´ic., adj. ...

dyspragia
(dis-pra´je-ә) painful performance of any function.

dyspraxia
(dis-prak´se-ә) partial loss of ability to perform coordinated movements.

dysprosium
(Dy) (dis-pro´se-әm) a chemical element, atomic number 66, atomic weight 162.50.

dysproteinemia
(dis-pro″tēn-e´me-ә) disorder of the protein content of the blood. plasma cell dyscrasias.

dysraphia
(dis-ra´fe-ә) dysraphism (dis-rāf´iz-әm) incomplete closure of a raphe; defective fusion, particularly of the neural tube; see also neural tube defect.

dysreflexia
(dis″re-flek´se-ә) a condition of disordered response to stimuli.

dysrhythmia
(dis-rith´me-ә) disturbance of rhythm, such as of brain waves or the heartbeat. cerebral dysrhythmia , electroencephalographic dysrhythmia disturbance or irregularity in the rhythm of the brain waves as recorded by electroencephalography.

dyssebacea
(dis″se-ba´shә) a disorder of the sebaceous glands seen most often in riboflavin deficiency. There is greasy, scaly seborrhea on the midface, with redness in the nasal folds, canthi, or other skin folds.

dyssomnia
(dis-som´ne-ә) any of a group of primary sleep disorders characterized by disturbances in the quality, amount, or timing of sleep, including primary insomnia, primary hypersomnia, breathing-related sleep disorder, circadian rhythm sleep disorder, and narcolepsy. See also parasomnia.

dysspermia
(dis-spur´me-ә) an abnormality of the spermatozoa or of the semen. difficult or painful emission of sperm or semen.

dysstasia
(dis-sta´shә) difficulty in standing. adj., dysstat´ic., adj.

dyssynergia
(dis″sin-ur´je-ә) muscular incoordination. dyssynergia cerebellaris myoclonica dyssynergia cerebellaris progressiva associated with myoclonus epilepsy. dyssynergia cerebellaris progressiva a condition marked by generalized intention tremors asso...

dystaxia
(dis-tak´se-ә) difficulty in controlling voluntary movements.

dystectia
(dis-tek´she-ә) neural tube defect.

dysthymia
(dis-thi´me-ә) dysthymic disorder.

dysthymic
(dis-thi´mik) characterized by symptoms of mild depression.

dysthymic disorder
(dis-thi´mik) a chronic mood disorder characterized by sad or depressed feelings, loss of interest or pleasure in one's usual activities, and other symptoms typical of depression but tending to be longer in duration and less severe than in major depressive disorder.

dysthyroid
(dis-thi´roid) denoting defective functioning or development of the thyroid gland.

dysthyroid orbitopathy
the ocular changes associated with thyroid dysfunction, most often Graves disease, including endocrine exophthalmos, malignant exophthalmos, and infiltrative ophthalmopathy; called also dysthyroid ophthalmopathy.

dystocia
(dis-to´shә) abnormal labor or childbirth. fetal dystocia that due to shape, size, or position of the fetus. maternal dystocia that due to some condition inherent in the mother. placental dystocia difficult delivery of ...

dystonia
(dis-to´ne-ә) impairment of muscular tonus. adj., dyston´ic., adj.

dystonia musculorum deformans
(dis-to´e-ә mus-ku-lor´әm de-for´manz) a rare hereditary type of generalized dystonia that is marked by involuntary, irregular, spasmodic contortions of the muscles of the trunk and limbs. These occur especially when the person is walking, so that the body twists forward and sideways in a grotesque fashion. ...

dystopia
(dis-to´pe-ә) malposition; displacement. adj., dystop´ic., adj.

dystrophia
(dis-tro´fe-ә) a Latin word meaning dystrophy. dystrophia adiposogenitalis adiposogenital dystrophy. dystrophia epithelialis corneae dystrophy of the corneal epithelium, with erosions. dystrophia myotonica myotonic dyst...

dystrophic degeneration
degeneration arising from defective or faulty nutrition.

dystrophin
(dis´trә-fin) a protein found in skeletal and cardiac muscle, normally in a tightly bound complex with sarcolemmal glycoproteins; mutations in the gene encoding it have been associated with Duchenne muscular dystrophy, Becker muscular dystrophy, and occasionally also other types of skeletal muscle dysfunction.

dystrophoneurosis
(dis-trof″o-ndbobr-ro´sis) any nervous disorder due to poor nutrition. impairment of nutrition due to a nervous disorder.

dystrophy
(dis´trә-fe) any disorder due to defective or faulty nutrition, especially muscular dystrophy. adj., dystroph´ic., adj. myotonic dystrophy a rare, slowly progressive, hereditary disease, marked by myotonia followed by muscular atrophy (especially of the face and ne...

dysuria
(dis-u´re-ә) painful or difficult urination. adj., dysu´ric., adj.

Eagle-Barrett syndrome
(e´gәl bar´әt) prune-belly syndrome.

Eales disease
(ēlz) a condition marked by recurrent hemorrhages into the retina and vitreous, affecting mainly males in the second and third decades of life.

ear
(ēr) the organ of hearing and equilibrium, divided anatomically into the outer ear, middle ear, and inner ear. Click here to view image Structures of the ear.

ear bones
auditory ossicles.