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feather star

(Encyclopedia)feather star, common name of a class of echinoderms that, as juveniles, are attached to the sea bottom by a stalk with rootlike branches; the mouth side faces upward. In the adult stage they break awa...

Fernando de Noronha

(Encyclopedia)Fernando de Noronha fərnänˈdo͝o dĭ no͝orôˈnyə [key], group of 21 islands, c.10 sq mi (26 sq km), in the Atlantic Ocean, c.225 mi (360 km) off the northeast coast of Brazil. A federal territor...

sea lily

(Encyclopedia)sea lily, stalked echinoderm of the class Crinoidea. Sea lilies are ancient, having reached their peak in the Middle Mississippian period; about 5,000 fossil species are known. About 80 modern species...

polar front

(Encyclopedia)polar front, zone of transition between polar and tropical air masses. Its average position during the winter is at about 30° lat. and during the summer at about 60° lat. In the N Atlantic Ocean, fo...

Rabat

(Encyclopedia)Rabat räbätˈ [key], city (1994 pop. 787,745), capital of Morocco, on the Atlantic Ocean at the mouth of the Bou Regreg estuary, opposite Salé. Silting problems have diminished the city's role as a...

Puerto Montt

(Encyclopedia)Puerto Montt mōnt [key], city (1992 pop. 130,730), capital of Los Lagos region, S central Chile, a port on Ancud Gulf, an inlet of the Pacific Ocean. It is the southern terminus of Chile's mainland r...

Aden, Gulf of

(Encyclopedia)Aden, Gulf of äˈdən, āˈ– [key], western arm of the Arabian Sea, 550 mi (885 km) long, lying between Yemen and Somalia; connected with the Red Sea by the Bab el Mandeb. The gulf is on the great ...

Yarmouth, city, Canada

(Encyclopedia)Yarmouth yärˈməth [key], city (1991 pop. 7,781), SW N.S., Canada, on the Atlantic Ocean. It is a port, with exports of lumber, fish, berries, and Irish moss. Manufactures include wood products, iro...

Simon's Town

(Encyclopedia)Simon's Town or Simonstown sīˈmənztoun [key], town, now part of City of Cape Town metropolitan municipality, Western Cape prov., SW South Africa, on False Bay, an arm of the Atlantic Ocean. It is a...

sky

(Encyclopedia)sky, apparent dome over the earth, background of the clouds, sun, moon, and stars. The blue color of the clear daytime sky results from the selective scattering of light rays by the minute particles o...