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macular degeneration

(Encyclopedia)macular degeneration, eye disorder causing loss of central vision. The affected area, the macula, lies at the back of the retina and is the part that produces the sharpest vision. The most serious vis...

patent medicine

(Encyclopedia)patent medicine, packaged drugs that can be obtained without prescription; the term was formerly used to describe quack remedies sold by peddlers. Patent, or proprietary, medicines are advertised to t...

Soderbergh, Steven

(Encyclopedia)Soderbergh, Steven (Steven Andrew Soderbergh), 1963–, American film director, b. Atlanta, Ga. After making short films and documentaries, he scored a commercial success with sex, lies, and videotape...

squill

(Encyclopedia)squill, common name for two genera of Old World bulbous plants of the family Liliaceae (lily family). The horticulturists' squill is any plant of the genus Scilla, mostly spring-blooming low herbs wit...

tamoxifen

(Encyclopedia)tamoxifen təmŏkˈsĭfĕnˌ [key], synthetic hormone used in the treatment of breast cancer. Introduced in 1978, tamoxifen is used to prevent recurrences of cancer in women who have already undergone...

catatonia

(Encyclopedia)catatonia kătˌətōˈnēə [key], mental state generally characterized by statuesque posturing, muscular immobility, mutism, and apparent stupor. The muscles are held in a pliant state called waxy f...

baldness

(Encyclopedia)baldness, thinning or loss of hair as a result of illness, functional disorder, or hereditary disposition; also known as alopecia. Male pattern baldness, a genetic trait, is the most common cause of b...

Reno, Janet

(Encyclopedia)Reno, Janet rēˈnō [key], 1938–2016, U.S. attorney general (1993–2001), b. Miami, Fla.; grad. Harvard Law School (1963). As assistant state's attorney (1973–76) and state's attorney (1976–93...

amyotrophic lateral sclerosis

(Encyclopedia)amyotrophic lateral sclerosis (ALS) āˌmīətrōfˈik, sklĭrōˈsĭs [key] or motor neuron disease, sometimes called Lou Gehrig's disease, degenerative disease that affects motor neurons in the brai...

Ignarro, Louis Joseph

(Encyclopedia)Ignarro, Louis Joseph, 1941–. American pharmacologist, b. Brooklyn, N.Y., Ph.D. Univ. of Minnesota, 1966. He was on the faculty at Tulane Univ. from 1979 to 1985, when he became a professor at the U...