hydro-, hydra-, hydr-, hyd-
2. The process of removing water from a food product in order to preserve it or to make it more portable.
3. Excessive loss of water from the body or from an organ or body part, as a result of illness or fluid deprivation.
A condition in which there is an excessive loss of water from the body tissues, caused by such factors as prolonged diarrhea or fever, repeated vomiting, and excessive perspiration or urination. Extreme dehydration may lead to shock or even death.
Chalcedony; calcedony: A translucent to transparent milky or grayish quartz with distinctive microscopic crystals arranged in slender fibers in parallel bands.
2. The branch of geology that studies the movement of subsurface water through rocks and the effect of moving water on rocks, including their erosion.
The term geohydrology is often used interchangeably with hydrogeology. Some make the minor distinction between hydrologists or engineers who are applying themselves to geology (geohydrology), and geologists applying themselves to hydrology (hydrogeology).
2. Producing a discharge of watery fluid; denoting a class of cathartics that retain fluids in the intestine and aid in the removal of edematous fluids; such as, saline cathartics.
3. Causing watery discharge; especially, watery stools.
This is a condition in which the cerebral hemispheres are absent and replaced by sacs filled with cerebrospinal fluid. Usually the cerebellum and brainstem are formed normally.
An infant with hydranencephaly may appear normal at birth. The infant's head size and spontaneous reflexes; such as, sucking, swallowing, crying, and moving the arms and legs may all seem normal; however, after a few weeks the child usually becomes irritable and has increased muscle tone (hypertonia or increased rigidity, tension, and spasticity of the muscles).
After several months of life, seizures and hydrocephalus may develop. Other symptoms may include visual impairment, lack of growth, deafness, blindness, spastic quadriparesis (paralysis), and intellectual deficits.