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rock

(Encyclopedia)rock, aggregation of solid matter composed of one or more of the minerals forming the earth's crust. The scientific study of rocks is called petrology. Rocks are commonly divided, according to their o...

Edward the Black Prince

(Encyclopedia)Edward the Black Prince, 1330–76, eldest son of Edward III of England. He was created duke of Cornwall in 1337, the first duke to be created in England, and prince of Wales in 1343. Joining his fath...

Plymouth, city, England

(Encyclopedia)Plymouth, city and unitary authority (1991 pop. 238,583), SW England, on Plymouth Sound. The three towns that Plymouth has comprised since 1914 are Plymouth, Stonehouse, and Devonport; the suburbs of ...

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...

Perugia

(Encyclopedia)Perugia pāro͞oˈjä [key], city (1991 pop. 144,732), capital of Umbria and of Perugia prov., central Italy, situated on a hill overlooking the valley of the Tiber River. It is a commercial, industri...

parthenogenesis

(Encyclopedia)parthenogenesis pärˌthənōjĕnˈəsĭs [key] [Gr.,=virgin birth], in biology, a form of reproduction in which the ovum develops into a new individual without fertilization. Natural parthenogenesis ...

Liguria

(Encyclopedia)Liguria lĭgo͝orˈēə, Ital. lēgo͞oˈryä [key], region (1991 pop. 1,676,282), 2,098 sq mi (5,434 sq km), NW Italy, extending along the Ligurian Sea and bordering France on the west. The generally...

Erechtheum

(Encyclopedia)Erechtheum ĭrĕkˈthēəm [key] [for Erechtheus], Gr. Erechtheion, temple in Pentelic marble, on the Acropolis at Athens. One of the masterpieces of Greek architecture, it was constructed between c.4...

New Delhi

(Encyclopedia)New Delhi dĕlˈē [key], city (1991 pop. 294,149), capital of India and of the National Capital Territory of Delhi, N central India, on the right bank of the Yamuna River. Predominantly an administra...

Castro, Inés de

(Encyclopedia)Castro, Inés de, or Inez de Castro both: īˈnĕz də kăsˈtrō, Port. ēnĕshˈ dĭ käshˈtro͝o [key], d. 1355, Spanish noblewoman, a celebrated beauty, and a tragic figure in Portuguese history....
 

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