hyper |
1. <prefix> Signifying over, above, high, beyond, excessive, above normal; as, hyperphysical, hyperthyrion; also abnormally great, excessive; as, hyperaemia, hyperbola, hypercritical, hypersecretion. 2. <chemistry> A prefix equivalent to super- or per-; as hyperoxide, or peroxide. Compare: super. Origin: Gr. Over, above; akin to L. Super, E. Over. (06 Mar 1998) |
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hyper-beta-alaninaemia |
Elevated levels of beta-alanine in the serum; believed to be due to a deficiency of beta-alanine:pyruvate aminotransferase; leads to impaired CNS function. (05 Mar 2000) |
hyper-beta-aminoisobutyric aciduria |
Elevated levels of beta-aminoisobutyric acid in the urine; believed to be due to a deficiency of liver R-beta-aminoisobutyrate:pyruvate aminotransferase. (05 Mar 2000) |
hyperabduction syndrome |
<syndrome> Pain running down the arm, numbness, paresthesias, and erythema, with weakness of the hands; due to abduction of the arm for a prolonged period (e.g., during sleep or necessitated by occupation) which stretches the axillary vessels and the nerves of the brachial plexus. Synonym: subcoracoid-pectoralis minor tendon syndrome, Wright's syndrome. (05 Mar 2000) |
hyperacanthosis |
An increase in the thickness of the stratum spinosum of the epidermis. Synonym: hyperacanthosis. Origin: acantho-+ G. -osis, condition (05 Mar 2000) |
hyperacid |
Having an excessive concentration of acid. (05 Mar 2000) |
hyperacidity |
<gastroenterology, physiology> The increased production of acid in the stomach. See: peptic ulcer disease. (06 Mar 1998) |
hyperactive child syndrome |
<psychiatry> A condition seen in children where there is increased motor activity in association with poor attention span. Often treated with amphetamine medications. (27 Sep 1997) |
hyperactivity |
Synonym: superactivity. 2. General restlessness or excessive movement such as that characterizing children with attention deficit disorder or hyperkinesis. (05 Mar 2000) |
hyperacusis |
Hyperacusia Abnormal acuteness of hearing due to increased irritability of the sensory neural mechanism. Synonym: auditory hyperesthesia. Origin: hyper-+ G. Akousis, a hearing (05 Mar 2000) |
hyperacute purulent conjunctivitis |
Conjunctivitis caused by Neisseria gonorrhoea and marked by swollen congested conjunctiva, edematous eyelids, and a purulent discharge. (05 Mar 2000) |
hyperacute rejection |
A rejection that usually develops in less than one hour from the implantation of a vascular graft, a form of antibody-mediated, usually irreversible damage to a transplanted organ, particularly the kidney, manifested predominantly by diffuse thrombotic lesions, usually confined to the organ itself and only rarely disseminated, for skin allograft rejection of this type, see white graft. (05 Mar 2000) |
hyperadenosis |
Glandular enlargement, especially of the lymphatic glands. Origin: hyper-+ G. Aden, gland, + -osis, condition (05 Mar 2000) |
hyperadiposis |
Hyperadiposity An extreme degree of adiposis or fatness. (05 Mar 2000) |
hyperadrenalcorticalism |
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: Cushing's syndrome. Synonym: adrenalism, hyperadrenalcorticalism, hyperadrenocorticalism. (05 Mar 2000) |