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Gemini

(Encyclopedia)Gemini jĕmˈənī, –nē [key] [Lat.,=the twins], northern constellation lying on the ecliptic (the sun's apparent path through the heavens) between Taurus and Cancer, N of Canis Minor; it is one of...

europium

(Encyclopedia)europium yo͝orōˈpēəm [key] [from Europe], metallic chemical element; symbol Eu; at. no. 63; at. wt. 151.964; m.p. about 820℃; b.p. about 1,600℃; sp. gr. 5.25 at 25℃; valence +2 or +3. Europ...

O'Keeffe, Georgia

(Encyclopedia)O'Keeffe, Georgia ōkēfˈ [key], 1887–1986, American painter, b. Sun Prairie, Wis. After working briefly as a commercial artist in Chicago, O'Keeffe abandoned painting until she began the study of ...

Pamplona

(Encyclopedia)Pamplona pämplōˈnä [key], city (1990 pop. 183,525), capital of Navarre, N Spain, on the Arga River. An older spelling is Pampeluna. It is an important communications, agricultural, and industrial ...

Hidatsa

(Encyclopedia)Hidatsa hēdätˈsä [key], Native North Americans, also known as the Minitari and the Gros Ventre. Their language belongs to the Siouan branch of the Hokan-Siouan linguistic stock (see Native America...

Hyades, in astronomy

(Encyclopedia)Hyades hīˈədēz [key], in astronomy, open star cluster in the constellation Taurus, located immediately to the right of the bright star Aldebaran. The cluster is about 130 light-years from the eart...

international date line

(Encyclopedia)international date line, imaginary line on the earth's surface, generally following the 180° meridian of longitude, where, by international agreement, travelers change dates. Traveling eastward acros...

dwarf planet

(Encyclopedia)dwarf planet, a nonluminous body of rock or gas that orbits the sun and has a rounded shape due to its gravity. Unlike a planet, a dwarf planet is not capable of clearing its orbit of smaller objects ...

Joshua, book of the Bible

(Encyclopedia)Joshua jŏshˈo͞oə [key], book of the Bible. It is the first book of the Deuteronomic history (Joshua–2 Kings), in which the theological outlook of the Book of Deuteronomy is used to explain the f...

sunflower

(Encyclopedia)sunflower, any plant of the genus Helianthus of the family Asteraceae (aster family), annual or perennial herbs native to the New World and common throughout the United States. In cultivation, the flo...