Columbia Encyclopedia

Search results

500 results found

hammerhead shark

(Encyclopedia)hammerhead shark, active, surface-living shark, genus Sphyrina. Its curious head has lateral projections resembling the crossbar of a T, and its eyes and ears are located in the outer tips of the proj...

killer whale

(Encyclopedia)killer whale, orca, or grampus, a large, rapacious marine mammal of the dolphin family. Historically considered one species, Orcinus orca, killer whales may be classified into several types, based on...

snapping turtle

(Encyclopedia)snapping turtle, large, aggressive New World freshwater turtle. The two snapping turtle species are the sole members of the family Chelydridae. Snapping turtles prefer quiet, muddy water. They spend m...

pharynx

(Encyclopedia)pharynx fârˈĭngks [key], area of the gastrointestinal and respiratory tracts which lies between the mouth and the esophagus. In humans, the pharynx is a cone-shaped tube about 41⁄2 in. (11.43 cm)...

adhesive

(Encyclopedia)adhesive, substance capable of sticking to surfaces of other substances and bonding them to one another. The term adhesive cement is sometimes used in place of adhesive, especially when referring to a...

Zadar

(Encyclopedia)Zadar zäˈdär [key], Ital. Zara, city (2011 pop. 75,062), W Croatia, on the Dalmatian coast of the Adriatic Sea. A seaport and a tourist center, it has industries that produce liqueur, processed fis...

water beetle

(Encyclopedia)water beetle, name for aquatic beetles of several families. They should not be confused with water bugs, which are true bugs (order Hemiptera). The predaceous diving beetles (family Dytiscidae) are a ...

Cantabria

(Encyclopedia)Cantabria käntäˈbrēä [key], autonomous community and coextensive prov., 2,057 sq mi (5,328 sq ...

Chad, Lake

(Encyclopedia)Chad, Lake chăd, chäd [key], N central Africa. It lies mainly in Chad and Cameroon. Some 550 sq mi (1,425 sq km) in area in 2003, the shallow lake has been greatly reduced in size since the 1960s, w...

Vishnu

(Encyclopedia)Vishnu vĭshˈno͞o [key], one of the greatest gods of Hinduism, also called Narayana. First mentioned in the Veda as a minor deity, his theistic cults, known as Vaishnavism, or Vishnuism, grew steadi...