H

hydration

The process of combining with water. In medicine, the process of giving fluids needed by the body. … [Read more...]

hydrazine sulfate

The synthetic sulfate salt of hydrazine, a derivative of ammonia. Hydrazine inhibits the enzyme phosphoenol pyruvate carboxykinase, thereby blocking … [Read more...]

Hydrea

(Other name for: hydroxyurea) … [Read more...]

hydrocarbon

A substance made of only hydrogen and carbon. Examples of hydrocarbons are coal, petroleum, natural gas and tar. They are used as energy sources. Being exposed … [Read more...]

hydrocephalus

The abnormal buildup of cerebrospinal fluid in the ventricles of the brain. … [Read more...]

hydrocodone bitartrate

A drug used to treat moderate to severe pain and cough. Hydrocodone bitartrate is made from codeine and binds to opioid receptors in the central nervous system. … [Read more...]

hydrocortisone

A drug used to relieve the symptoms of certain hormone shortages and to suppress an immune response. … [Read more...]

Hydrocortone

(Other name for: therapeutic hydrocortisone) … [Read more...]

hydrogen peroxide

A chemical used in bleaches, dyes, cleansers, antiseptics, and disinfectants. In a concentrated form, it is toxic and irritating to tissues. … [Read more...]

hydrolysis

A chemical reaction that uses water to break down a compound. … [Read more...]