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Tu Youyou

(Encyclopedia)Tu Youyou, 1930–, Chinese pharmaceutical chemist, B.S. Peking Univ. School of Medicine, 1955. Tu has spent her entire career as a researcher at the China Academy of Traditional Chinese Medicine in B...

Ramazzini, Bernardino

(Encyclopedia)Ramazzini, Bernardino bārnärdēˈnō rämät-tsēˈnē [key], 1633–1717, Italian physician. He was professor at Modena (1682–1700) and at Padua until 1714. He is often called the father of indus...

protease inhibitor

(Encyclopedia)protease inhibitor prōˈtē-āsˌ [key], any of a class of drugs that interfere with replication of the AIDS virus (HIV), by blocking an enzyme (protease) necessary in the late stages of its reproduc...

ayahuasca

(Encyclopedia)ayahuasca or yagé, drink made by boiling various South American plants, used for centuries by shamans of traditional societies in the Amazon region in religious and healing ceremonies. It is usually ...

Bonanno, Joe

(Encyclopedia)Bonanno, Joe (Joseph Bonanno), 1905–2002, American crime boss nicknamed “Joe Bananas,” b. Castellammare del Golfo, Sicily. He came to the United States illegally in 1924, settled in Brooklyn, an...

cephalosporin

(Encyclopedia)cephalosporin sĕfˌəlōspôrˈĭn [key], any of a group of more than 20 antibiotics derived from species of fungi of the genus Cephalosporium and closely related chemically to penicillin. Cephalospo...

Mitchell, George John

(Encyclopedia)Mitchell, George John, 1933–, U.S. public official, b. Waterville, Maine. An attorney in private and government practice in the 1960s and 1970s, he was a protege of Senator Edmund Muskie. Generally ...

methotrexate

(Encyclopedia)methotrexate, drug used in halting the growth of actively proliferating tissues. Introduced in the 1950s, it is used in the treatment of leukemia, psoriasis, and non-Hodgkin's lymphoma. By binding to ...

acetaldehyde

(Encyclopedia)acetaldehyde ĕthˈənălˌ [key], CH3CHO, colorless liquid aldehyde, sometimes simply called aldehyde. It melts at −123℃, boils at 20.8℃, and is soluble in water and ethanol. It is formed by th...

meadow saffron

(Encyclopedia)meadow saffron or autumn crocus, perennial garden ornamental (Colchicum autumnale) of the family Liliaceae (lily family). Native to Europe and N Africa, it has escaped from gardens to meadows and fiel...