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puts and calls
(Encyclopedia) puts and calls, in securities trading. A call is a contract that gives the holder the right to purchase a given stock at a specific price within a designated period of time. It is the…Pyramus and Thisbe
(Encyclopedia) Pyramus and ThisbePyramus and Thisbepĭrˈəməs, thĭzˈbē [key], in classical mythology, youth and maiden of Babylon, whose parents opposed their marriage. Their homes adjoined, and they…ratchet and pawl
(Encyclopedia) ratchet and pawl, mechanical device that permits motion in one direction only. The ratchet is usually a wheel with slanting teeth. The pawl is a lever tangential to the wheel with one…oxidation and reduction
(Encyclopedia) oxidation and reduction, complementary chemical reactions characterized by the loss or gain, respectively, of one or more electrons by an atom or molecule. Originally the term…acids and bases
(Encyclopedia) acids and bases, two related classes of chemicals; the members of each class have a number of common properties when dissolved in a solvent, usually water. Another theory that…rock and roll
(Encyclopedia) rock and roll: see rock music.Louisiana State University and Agricultural and Mechanical College
(Encyclopedia) Louisiana State University and Agricultural and Mechanical College, mainly at Baton Rouge; land-grant and state supported; coeducational; chartered 1853, opened as a state seminary…American Academy and Institute of Arts and Letters
(Encyclopedia) American Academy and Institute of Arts and Letters, honorary academy of notable American artists, writers, and composers. The National Institute of Arts and Letters, founded in 1898,…coonhound, black-and-tan
(Encyclopedia) coonhound, black-and-tan, breed of large hound developed in the United States. It stands from 23 to 27 in. (58–69 cm) high at the shoulder and weighs from 70 to 85 lb (32–38 kg). The…Fury and Hecla Strait
(Encyclopedia) Fury and Hecla StraitFury and Hecla Straithĕkˈlə [key], narrow channel, c.100 mi (160 km) long and from 10 to 15 mi (16–24 km) wide, N Canada, between Baffin Island and Melville…Trending
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