A type of health care benefit plan provided by employers who are self-insured and pay for the care as it...

An old name for contagious disease, which was formerly thought to develop within the body following infection in a process...

The process of fermentation or digestion by an enzyme. The mechanism of fermentation initiated by an enzyme during digestion.  

The second stage of the first prophase of meiosis, in which the homologous chromosomes form pairs (bivalents).  

An ion that bears a positive and a negative charge. Amino acids can yield zwitterions.  

An astringent applied in a lotion for the treatment of ulcers of the skin and mouth and to assist wound...

An antimigraine drug. Zolmitriptan (Zomig) is used to treat severe migraine headaches. Zolmitriptan cannot prevent migraine but can only ease...

An antiasthma drug. Zileuton (Zyflo) is a type of antiasthma drug called a leukotriene inhibitor, used by people with mild...

An antiviral drug. Zanamivir (Relenza) is used to treat influenza virus A and B (flu) in people who have had...

An antiviral drug; an AIDS (acquired immunodeficiency syndrome) drug. Zaicitabine, or ddC (Hivid), is used alone or in combination with...