hyper-, hyp-

1. A chronic, noninflammatory degenerative joint disease marked by degeneration of the articular cartilage, hypertrophy of bone at the margins, and changes in the synovial membrane, accompanied by pain and stiffness.
2. A degenerative joint disease (DJD), which is a progressive disorder of the joints caused by gradual loss of cartilage and resulting in the development of bony spurs and cysts at the margins of the joints.

The most common type of arthritis which is characterized by inflammation, degeneration and eventual loss of the cartilage of the joints of fingera, hands, feet, spine, and large weight-bearing joints; for example, the hips and knees.

A condition characterized by the overgrowth of bones.

An abnormal sensitivity to sound, sometimes found in hysteria, in which hearing is abnormally acute.

An abnormal increase of sensibilities to vibrations.

A reference to a disordered, false, or perverted sense of taste.

The intravenous administration of greater than the normally optimal amounts of essential nutrients.

Artificially induced hypercapnia (more than the normal level of carbon dioxide in the blood) in patients with acute respiratory distress syndrome or respiratory failure.

Done to lower the inspiratory pressure and tidal volume and the possibility of lung injury.

Persistence after birth of the fine hair present during fetal life, because of the inability of the bodily skin to throw it off.

Descriptive reference to an increase in the size of a bodily organ, or part of an organ, resulting from fatty or fibrous tissue.

An increase in size of an organ or a part, due not to an increase in size or the number of the specific functional elements but to that of some other tissue, fatty or fibrous.

Random excess activity that fulfills no purpose.

In organic brain disease, stimulation sufficient to produce any response typically provokes purposeless hyperactivity in addition to the appropriate response.

A condition produced by relatively great activity or stimulation of the sympathetic nervous system and characterized by blanching of the skin, goose bumps or goose flesh, vascular spasm, increased pilomotor activity (movement of hairs), and abnormally high blood pressure.

The oculocardiac reflex (slowing of the rhythm of the heart following compression of the eyes) is reduced or inverted, the pupils of the eyes are dilated, there is a fine rapid tremor of the hands, and insomnia often occurs.

Gastrointestinal symptoms; such as, anorexia and constipation may also be present.

Excessive sensitiveness to high temperatures.

1. Heat stroke resulting from the prolonged exposure to the sun, characterized by extreme pyrexia, prostration, convulsion, and coma.
2. A severe and often fatal illness produced by exposure to excessively high temperatures; especially, when it is related to significant physical exertion.

It is usually experienced with elevated body temperature, lack of sweating, hot dry skin, and neurologic symptoms; including unconsciousness, paralysis, headache, vertigo, and/or confusion. In severe cases, very high fever, vascular collapse, and coma also develop.

1. Extreme sensitiveness to heat stimuli.
2. Very acute thermoesthesia or temperature sense; exaggerated perception of hot and cold.