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southern tick-associated rash illness

(Encyclopedia)southern tick-associated rash illness (STARI) or Masters disease, illness characterized by a Lyme disease–like rash that is associated with bite from the Lone Star tick (Amblyomma americanum) rather...

agate

(Encyclopedia)agate ăgˈĭt [key], translucent, cryptocrystalline variety of quartz and a subvariety of chalcedony. Agates are identical in chemical structure to jasper, flint, chert, petrified wood, and tiger's-e...

pineal gland

(Encyclopedia)pineal gland pĭnˈeəl [key], small organ (about the size of a pea) situated in the brain. Long considered vestigial in humans, the structure, which is also called the pineal body or the epiphysis, i...

Waters, Ethel

(Encyclopedia)Waters, Ethel, 1896?–1977, African-American singer and actress, b. Chester, Pa. As a singer, she is noted for her sultry, sophisticated, and dramatic version of the blues, evinced in her interpretat...

Ignatieff, Michael Grant

(Encyclopedia)Ignatieff, Michael Grant ĭgnătˈēəf [key], 1947–, Canadian politician, writer, and academic, b. Toronto, B.A. Univ. of Toronto (1969), Ph.D. Harvard (1976), M.A. Cambridge (1978). He was an assi...

Council of Europe

(Encyclopedia)Council of Europe, international organization founded in 1949 to promote greater unity within Europe and to safeguard its political and cultural heritage by promoting human rights and democracy. The c...

man, prehistoric

(Encyclopedia)man, prehistoric, or early man: see human evolution. ...

free will

(Encyclopedia)free will, in philosophy, the doctrine that an individual, regardless of forces external to him, can and does choose at least some of his actions. The existence of free will is challenged by determini...

Sherbrooke, University of

(Encyclopedia)Sherbrooke, University of, at Sherbrooke, Que., Canada; French language; founded 1954. It has faculties of letters and human sciences, science, administration, law, applied science, medicine, educatio...

MacCready, Paul Beattie

(Encyclopedia)MacCready, Paul Beattie, 1925–2007, American engineer and inventor known for his achievements in human-powered flight, b. New Haven, Conn., Ph.D. California Institute of Technology, 1952. In 1997 he...