Category: H

  • Hydrolysate

    That which is produced as a result of hydrolysis.  

  • Hydrology

    The scientific study of water. It is considered one of the earth sciences.  

  • Hydrolabile

    Chemically unstable in the presence of water.  

  • Hydrohematonephrosis

    Bloody urine distending the pelvis of the kidney.  

  • Hydrogen sulfide

    A poisonous, flammable, colorless compound with a characteristic odor of rotten eggs.  

  • Hydrogen donor

    In oxidation-reduction reactions, a substance that gives up hydrogen atoms to another substance, the acceptor.  

  • Hydrogel

    A colloid containing hydrophilic polymers. Hydrogels are used in numerous applications, including glucose sensors, breast implants, soft contact lenses, and sterile dressings.  

  • Hydroencephalocele

    Brain substance expanded into a watery sac protruding through a cleft in the cranium.  

  • Hydrodissection

    Technique employing a pressurized fine stream of water (jet) to develop tissue planes or to divide certain soft tissues less traumatically than ordinary sharp dissection. Examples of its use include division of brain and hepatic tissue without destroying smaller blood vessels and other tubular structures. In abdominal surgery, open or laparoscopic hydro-dissection is used to…

  • Hydrodensitometry

    The weighing of an object immersed in water and subsequent measurement of the water displaced. The specific gravity of the body can be estimated from that information, and the percentage of the body fat can be estimated.