|Medical Dictionary - Dictionary of Medicine and Human Biology|
Characterized by abnormally increased coagulation.
Excessive secretion of one or more steroid hormones of the adrenal cortex; sometimes used also to designate the state produced by therapeutic administration of large quantities of steroids having glucocorticoid activity, e.g., hydrocortisone. SEE ALSO: Cushing syndrome. SYN: adrenalism, hyperadrenalcorticalism, hyperadrenocorticalism.
SYN: hypercryesthesia. [hyper- + G. kryos, cold, + algesis, the sense of pain]
Extreme sensibility to cold. SYN: hypercryalgesia. [hyper- + G. kryos, cold, + aisthesis, sensation]
An abnormally high level of plasma copper. [hyper- + L. cuprum, copper, + G. haima, blood]
Marked by extreme cyanosis.
hypercyesis, hypercyesia (hi′per-si-e′sis, -e′ze-a)
SYN: superfetation. [hyper- + G. kyesis, pregnancy]
The presence of an abnormally high number of red blood cells in the circulating blood. SYN: hypererythrocythemia. [hyper- + G. kytos, cell, + haima, blood]
Increased intensity of staining of a cell, especially blood cells. [hyper- + G. kytos, cell, + chroma, color]
Obsolete term for any condition in which there is an abnormal increase in the number of cells in the circulating blood or the tissues; frequently used synonymously with leukocytosis.
Pronouncedly dicrotic. SYN: superdicrotic.
hyperdicrotism (hi-per-dik′ro-tizm, -di′kro-tizm)
Having a chromosome number greater than the diploid number.
Intense thirst that is relatively temporary. [hyper- + G. dipsa, thirst]
Extreme distention. SYN: superdistention.
1. In ultrasonography, pertaining to material that produces echoes of higher amplitude or density than the surrounding medium. 2. Denoting a region in an ultrasound image in which the echoes are stronger than normal or than surrounding structures.
hyperekplexia (hi′per-ek-pleks′e-a) [MIM#149400]
A hereditary disorder in which there are pathologic startle responses, i.e., protective reactions to unanticipated, potentially threatening, stimuli of any type, particularly auditory; the stimuli induce often widespread and violent sudden contractions of the head, neck, spinal, and sometimes limb musculature, resulting in involuntary shouting, jerking, jumping, and falling; autosomal dominant and recessive inheritance forms, with the responsible gene localized to chromosome 5q; probably the result of lack of inhibitory neurotransmitters, glycine, or GABA. SYN: kok disease, startle disease. [hyper- + G. ekplexia, sudden shock, fr. ekplesso, to startle]
Excessive vomiting. [hyper- + G. emesis, vomiting] h. gravidarum pernicious vomiting in pregnancy. h. lactentium vomiting by nursing infants with pyloric stenosis.
Marked by excessive vomiting.
The presence of an increased amount of bloodflow in a part or organ. SEE ALSO: congestion. [hyper- + G. haima, blood] active h. h. due to an increased afflux of arterial blood into dilated capillaries. SYN: arterial h., fluxionary h.. arterial h. SYN: active h.. Bier h. obsolete term for h. produced by Bier method (2) . collateral h. increased blood flow through abundant collateral channels when the circulation through the main artery to a part is arrested. fluxionary h. SYN: active h.. passive h. h. due to an obstruction in the flow of blood from the affected part, the venous radicles becoming distended. SYN: venous h.. peristatic h. SYN: peristasis. reactive h. h. following the arrest and subsequent restoration of the blood supply to a part. venous h. SYN: passive h..
A fetal developmental deficiency of the vault of the cranium, exposing the poorly formed brain. [hyper- + G. enkephalos, brain]
A greater degree of abnormal increase in the number of eosinophilic granulocytes in the circulating blood or the tissues; e.g., in diseases where the degree of eosinophilia usually ranges from 10–30%, an increase to 50 or 60% (or more) might be regarded as h..
An allergic hypersensitivity. SYN: hypergia.
Relating to hyperergia. SYN: hypergic.
A tendency of one eye to deviate upward and inward, prevented by binocular vision. [hyper- + G. eso, inward, + phora, movement]
Abnormal acuteness of sensitivity to touch, pain, or other sensory stimuli. [hyper- + G. aisthesis, sensation] auditory h. SYN: hyperacusis. cervical h. the hypersensitivity of teeth in the cervical area due to exposure of the dentin. gustatory h. SYN: hypergeusia. muscular h. sensitiveness of the muscles to pressure. olfactory h., h. olfactoria SYN: hyperosmia. h. optica extreme sensitivity of the eyes to light. See photophobia, photosensitivity. tactile h. SYN: hyperaphia.
Marked by hyperesthesia.
Pertaining to or characterized by a very low and wide face. [hyper- + G. eurys, wide, + prosopon, face]
A tendency of one eye to deviate upward and outward, prevented by binocular vision. [hyper- + G. exo, outward, + phora, movement]
Extension of a limb or part beyond the normal limit. SYN: overextension, superextension.
High serum iron level; found in hemochromatosis.
An increased level of fibrinogen in the blood. SYN: fibrinogenemia.
Markedly increased fibrinolysis, as in subdural hematomas.
Flexion of a limb or part beyond the normal limit. SYN: superflexion.
Elevated serum fructose levels.
Excessive secretion of milk. [hyper- + G. gala, milk, + -osis, condition]
An increased amount of the γ-globulins in the plasma, such as that frequently observed in chronic infectious diseases.
SYN: neuronal hyperplasia.
Excessive development or redundant production of parts or organs of the body. [hyper- + G. genesis, production]
Relating to hypergenesis.
Abnormal overdevelopment of genitalia.
hypergeusia (hi-per-goo′se-a, -joo′se-a)
Abnormal acuteness of the sense of taste. SYN: gustatory hyperesthesia. [hyper- + G. geusis, taste]
Characterized by overactivity or increased size of a gland.
hyperglobulia, hyperglobulism (hi′per-glob-u′le-a, -glob′u-lizm)
Old term for polycythemia. [hyper- + L. globulus, globule]
An abnormally high concentration of globulins in the circulating blood plasma.
An abnormally high concentration of glucose in the circulating blood, seen especially in patients with diabetes mellitus. SYN: hyperglycosemia. [hyper- + G. glykys, sweet, + haima, blood] ketotic h. an inborn error of glycine metabolism characterized by lethargy, vomiting, convulsions, hypertonia, and difficulty breathing; milk protein and casein induce attacks; autosomal recessive inheritance. nonketotic h. SYN: hyperosmolar (hyperglycemic) nonketotic coma. posthypoglycemic h. SYN: Somogyi phenomenon.
Elevated plasma concentration of glycerides. endogenous h. type IV familial hyperlipoproteinemia or, more commonly, a nonfamilial sporadic variety. exogenous h. persistent h. due to retarded rate of removal from plasma of chylomicrons of dietary origin; occurs in alcoholism, hypothyroidism, insulinopenic diabetes mellitus, types I and V hyperlipoproteinemia, and during acute pancreatitis.
Elevated plasma glycine concentration. ketotic h. an inherited metabolic defect which results from a deficiency of propionyl Coenzyme A carboxylase, the enzyme that converts propionate to methylmalonate; the enzyme requires biotin as a cofactor; clinically, affected infants have overwhelming illness, with lethargy, metabolic acidosis with ketosis, hypotonia; coma and seizures typically develop with early death; propionic acid is markedly elevated in plasma and urine; there is also hyperammonemia, and elevated levels of other metabolites as well, including glycine, hence the original name for the syndrome. SYN: methylmalonic acidemia, propionic acidemia. nonketotic h. [MIM*238300] an inborn error of glycine metabolism, due to a deficiency of glycine dicarboxylase P protein (GCSP), a component of glycine cleavage system; characteristically overwhelming disease in the newborn period, with coma, seizures and death, or, less often, gradual onset with failure to thrive, focal seizures, and mental retardation; there is massive elevation of plasma glycine, with increased levels in cerebrospinal fluid and urine; plasma hyperosmolality, severe dehydration occur without ketoacidosis; autosomal recessive inheritance; caused by mutation in the GCSP gene on chromosome 9p.
Enhanced urinary excretion of glycine.
Excessive glycogenolysis. [hyper- + glycogen + G. lysis, loosening]
Excessive sugar in the cerebrospinal fluid. [hyper- + G. glykys, sweet, + rhachis, spine]
Persistent excretion of unusually large amounts of glucose in the urine; i.e., an extreme degree of glucosuria.
Enhanced plasma (and possibly tissue) concentrations of glyoxylate; may develop during thiamine deficiency.
1. Projection of inner conflicts into the environment. 2. Exaggerated perception, such as the expansion of an isolated thought. [hyper- + G. gnosis, knowledge]
A clinical state resulting from enhanced secretion of gonadal hormones.
Indicating an increased production or excretion of gonadotropic hormones.
Increased thickness of the granular layer of the epidermis, associated with hyperkeratosis. [hyper- + (stratum) granulosum + -osis, condition]
A condition in which there is an abnormally large amount of guanidine in the circulating blood.
Overdevelopment of secondary sex characteristics of the mature female or their precocious development in the young girl. [hyper- + G. gyne, woman, + kosmeo, to decorate]
hyperhedonia, hyperhedonism (hi′per-he-do′ne-a, -he′don-izm)
The feeling of an abnormally great pleasure in any act or from any happening. [hyper- + G. hedone, pleasure]
An unusually large amount of hemoglobin in the circulating blood plasma; i.e., much more than that ordinarily observed in most examples of hemoglobinemia.
hyperheparinemia (hi′per-hep′ar-in-e′me-a) [MIM*144050]
Elevated plasma concentrations of heparin; believed to be the cause of a heritable bleeding tendency; probably autosomal dominant inheritance.
Excessive or profuse sweating. SYN: polyhidrosis, sudorrhea. [hyper- + hidrosis] gustatory h. excessive sweating of the lips, nose, and forehead after eating certain foods; it is physiologic in many persons, but sometimes occurs after parotid surgery or as a result of damage to the parasympathetic or sympathetic nerves of the head and neck.
. . . Feedback