| Term | Definition |
|---|---|
| Macular degeneration |
A disease that occurs when the macula, the part of the retina at the back of the eye that provides sharp, central vision, deteriorates with age. It is a leading cause of vision loss in the elderly. |
| Magnetic resonance imaging (MRI) |
A test that produces high-quality images of the body’s internal structures without the use of X-rays. MRI uses a large magnet, radio waves and a computer to produce these images. |
| Male Menopause |
Subtle changes in the function of the testis that may occur as early as 45 to 50 years of age, and more dramatically after the age of 70. |
| Malignant |
Cancerous, as in a malignant tumor. |
| Malignant melanomas |
A cancer that develops in the pigment-producing cells that determine skin color. |
| Mammogram |
A series of specialized X-rays of the breast used to detect abnormal growths or changes in the breast tissue. |
| Masturbation |
Self-stimulation of the genitals to achieve sexual arousal and pleasure, usually to the point of orgasm (sexual climax). |
| Melanoma |
Cancer of the cells that produce pigment in the skin. |
| Menopause |
When a woman’s ovaries stop producing hormones because the number of eggs (follicles) is limited. At this time, regular menstrual periods stop. |
| Menstruation |
The periodic shedding of the uterine lining. |
| Metastasis |
Cancer cells that break from a tumor and spread to other parts of the body. |
| Metronidazole |
The most common medicine used to treat trichomoniasis. Common brand names for this medicine are Flagyl and Protostat. |
| Microsurgery |
Surgery utilizing a microscope to enable doctors to operate on very small areas. Microsurgery is used to target a specific area and to protect as much of the surrounding healthy tissue as possible. |
| Mittelschmerz |
The pelvic pain that some women experience during ovulation. (Ovulation generally occurs about mid way between menstrual cycles; hence the term mittelschmerz, which comes from the German words for "middle" and "pain.") |
| Monogamy |
The practice of having sex with only one partner. |