(1) failure of the ovaries to produce, develop or release eggs (ova); (2) ovary enlargement; (3) failure to menstruate; (4) irregular menstruation; (5) obesity; and (6) infertility. It must be noted that failure to menstruate is normal before puberty, during pregnancy, during early lactation and after menopause. It is probably abnormal at other times and should receive a physician’s attention. Derivation
The noun form of “virilize” is “virilization.” “Virilize” and “virilization” are not to be confused with “masculinize” and “masculinization” which refer to the development of male characteristics in a male on a normal schedule during or on a precocious schedule in a younger boy.
“Virilize” and “virilization” are derived from the Latin word “virilis” (masculine). Other words derived from “virilis” include “virile” (manly) and “virility” (manliness).
- Virtual colonoscopy
A method for examining the colon by taking a series of x-rays and then using a computer to reconstruct three-dimensional pictures (a CT scan) of the interior surfaces of the colon from these x-rays. The pictures can be saved, manipulated to better viewing angles, and reviewed after the procedure. The procedure requires a 48-hour low-fiber […]
The ability of an agent of infection to produce disease. The virulence of a microorganism is a measure of the severity of the disease it causes.
A microorganism that is smaller than a bacterium that cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity or with errors (mutations); this ability to mutate is responsible for the ability of […]
- Virus, attenuated
a virus that is capable of stimulating an immune response and creating immunity but not of causing illness.
- Virus, human immunodeficiency (HIV)
The cause of AIDS. HIV has also been called the human lymphotropic virus type III, the lymphadenopathy-associated virus and the lymphadenopathy virus. No matter what name is applied, it is a retrovirus. (A retrovirus has an RNA genome and a reverse transcriptase enzyme. Using the reverse transcriptase, the virus uses its RNA as a template […]