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nautilus, in zoology

(Encyclopedia)nautilus or chambered nautilus, cephalopod mollusk belonging to the sole surviving genus (Nautilus) of a subclass that flourished 200 million years ago, known as the nautiloids. The spirally coiled sh...

parrotfish

(Encyclopedia)parrotfish, common name for a member of a large group of colorful reef fishes of warm seas, resembling the wrasses but of a larger size. Long considered a separate family, Scaridae, they are now group...

Polynesia

(Encyclopedia)Polynesia pŏlĭnēˈzhə, –shə [key] [Gr.,=many islands], one of the three main divisions of Oceania, in the central and S Pacific Ocean. The larger islands are volcanic; the smaller ones are gene...

Cartagena, city, Colombia

(Encyclopedia)Cartagena kärtähāˈnä [key], city, capital of Bolívar dept., NW Colombia, a port on the ...

Darwin, Charles Robert

(Encyclopedia)Darwin, Charles Robert, 1809–82, English naturalist, b. Shrewsbury; grandson of Erasmus Darwin and of Josiah Wedgwood. He firmly established the theory of organic evolution known as Darwinism. He st...

Bermuda

(Encyclopedia)Bermuda bûrmyo͞oˈdə [key], British dependency (2015 est. pop. 70,000), 21 sq mi (53 sq km), comprising some 150 coral rocks, islets, and islands (of which some 20 are inhabited), in the Atlantic O...

fluorescence

(Encyclopedia)fluorescence flo͝orĕsˈəns [key], luminescence in which light of a visible color is emitted from a substance under stimulation or excitation by light or other forms of electromagnetic radiation or ...

lacquer

(Encyclopedia)lacquer, solution of film-forming materials, natural or synthetic, usually applied as an ornamental or protective coating. Quick-drying synthetic lacquers are used to coat automobiles, furniture, text...

aircraft carrier

(Encyclopedia)aircraft carrier, ship designed to carry aircraft and to permit takeoff and landing of planes. The carrier's distinctive features are a upper deck (flight deck) that is flat and sometimes sloped to fu...

Sulu Archipelago

(Encyclopedia)Sulu Archipelago so͞oˈlo͞o [key], island group, 1,086 sq mi (2,813 sq km), the Philippines, SW of Mindanao. Lying between the Celebes and Sulu seas, it includes over 900 volcanic islands and coral ...