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stalactite and stalagmite
(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...Siegfried and Roy
(Encyclopedia) Siegfried and Roy (Siegfried Fischbacher, 1939-2021, b. Rosenheim, Germany; and Roy Uwe Ludwig Horn, 1944-2020, b. Nordenham, Germany), noted German-A...Serbia and Montenegro
(Encyclopedia) CE5 CE5 Serbia and Montenegro mŏnˌtənēˈgrō [key], Serbian Srbija i Crna Gora, former country of SE Europe, in the Balkan Peninsula, a short-lived union (2003–6) of the republics of Serbia...Slavophiles and Westernizers
(Encyclopedia)Slavophiles and Westernizers, designation for two groups of intellectuals in mid-19th-century Russia that represented opposing schools of thought concerning the nature of Russian civilization. The dif...population I and II
(Encyclopedia)population I and II, in astronomy: see stellar populations. ...Punch and Judy
(Encyclopedia)Punch and Judy, famous English puppet play, very popular with children and given widely by strolling puppet players, especially during the Christmas season. It came to England in the 17th cent. by way...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 opposite of a pu...Pyramus and Thisbe
(Encyclopedia)Pyramus and Thisbe pĭrˈəməs, thĭzˈbē [key], in classical mythology, youth and maiden of Babylon, whose parents opposed their marriage. Their homes adjoined, and they conversed through a crevice...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 end resting on t...polyp and medusa
(Encyclopedia) CE5 Polyp and medusa stages in the life cycle of Obelia, representative of the phylum Cnidaria polyp and medusa, names for the two body forms, one nonmotile and one typically free swimming, found ...Browse by Subject
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