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buoy

(Encyclopedia)buoy boi, bo͞oˈē [key], float anchored in navigable waters to mark channels and indicate dangers to navigation (isolated rocks, mine fields, cables, and the like). The shape, color, number, and mar...

Perim

(Encyclopedia)Perim pārēmˈ, pērˈĭm [key], Arab. Barim, island, c.5 sq mi (13 sq km), off the SW Arabian peninsula in the Bab el Mandeb strait; it is part of Yemen. A rocky and barren island rising to c.215 ft...

Permian period

(Encyclopedia)Permian period pûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290 million years ago. Many ma...

kagu

(Encyclopedia)kagu käˈgo͞o [key], common name for a long-legged, heronlike bird, Rhynochetos jubatus. It has a loose, gray plumage with darker bandings; broad, rounded wings marked with white, black, and red; an...

oarfish

(Encyclopedia)oarfish, large, elongated fish, genus Regalecus, found in the oceans worldwide except for the polar regions. Oarfish species are solitary and rarely seen by humans. The giant oarfish, R. glesne, is th...

olivine

(Encyclopedia)olivine ŏlĭvˈēn [key], an iron-magnesium silicate mineral, (Mg,Fe)2SiO4, crystallizing in the orthorhombic system. It is a common constituent of magnesium-rich, silica-poor igneous rocks; metamorp...

Helgoland

(Encyclopedia)Helgoland hĕlˈĭgōlăndˌ [key], island, c.150 acres (60 hectares), Schleswig-Holstein, NW Germany, ...

Heyerdahl, Thor

(Encyclopedia)Heyerdahl, Thor hāˈərdälˌ, hīˈ– [key], 1914–2002, Norwegian explorer and anthropologist, b. Larvik. He carried out research in the Marquesas Islands in 1937–38 and studied the indigenous ...

Coptos

(Encyclopedia)Coptos kŏpˈtəs [key], ancient city of Egypt, on the right bank of the Nile, c.27 mi (43 km) N of modern Luxor. Remains of the Temple of Min, patron god of Coptos, have been found there as well as r...

Ahaz

(Encyclopedia)Ahaz āˈhăz [key], d. c.727 b.c., king of Judah (c.731–727 b.c.), son of Jotham. His reign marked the end of the real independence of Judah. A coalition of Pekah of Israel and Rezin of Syria attac...