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Dausset, Jean

(Encyclopedia)Dausset, Jean zhäN dōsĕˈ [key], 1916–2009, French immunologist. A physician specializing in blood diseases, he was the laboratory director of the National Blood Transfusion Center (1946–63) an...

Tay-Sachs disease

(Encyclopedia)Tay-Sachs disease tāˈ-săksˈ [key], rare hereditary disease caused by a genetic mutation that leaves the body unable to produce an enzyme necessary for fat metabolism in nerve cells, producing cent...

clown

(Encyclopedia)clown, a comic character usually distinguished by garish makeup and costume whose antics are both humorously clumsy and acrobatic. The clown employs a broad, physical style of humor that is wordless o...

Hopkins, Gerard Manley

(Encyclopedia)Hopkins, Gerard Manley, 1844–89, English poet, educated at Oxford. Entering the Roman Catholic Church in 1866 and the Jesuit novitiate in 1868, he was ordained in 1877. Upon becoming a Jesuit he bur...

Byatt, A. S.

(Encyclopedia)Byatt, A. S. (Antonia Susan Byatt) bīˈət [key], 1936–, British novelist; sister of Margaret Drabble. Educated at Cambridge, Bryn Mawr College, Pa., and Oxford, she is a noted critic and novelist ...

cancer, in medicine

(Encyclopedia)cancer, in medicine, common term for neoplasms, or tumors, that are malignant. Like benign tumors, malignant tumors do not respond to body mechanisms that limit cell growth. Unlike benign tumors, mali...

crossing over

(Encyclopedia)crossing over, process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other. Crossing over occurs in the first division of meiosis. At that stage each ...

bioethics

(Encyclopedia)bioethics, in philosophy, a branch of ethics concerned with issues surrounding health care and the biological sciences. These issues include the morality of abortion, euthanasia, in vitro fertilizatio...

Lee, Fitzhugh

(Encyclopedia)Lee, Fitzhugh, 1835–1905, Confederate cavalry general in the American Civil War, b. “Clermont,” Fairfax co., Va.; nephew of Robert E. Lee. He campaigned against the Comanche in Texas and later w...

Carey, Peter

(Encyclopedia)Carey, Peter, 1943–, Australian novelist, b. near Melbourne. Carey's combination of science fiction and fantasy motifs with a realistic style, displayed in the short stories in The Fat Man in Histor...