Columbia Encyclopedia

Search results

424 results found

Bukhara

(Encyclopedia)Bukhara bəkäˈrə [key], city, capital of Bukhara region, Uzbekistan, in the Zeravshan River ...

caecilian

(Encyclopedia)caecilian sēsĭlˈēən [key], any of the legless, tailless tropical amphibians belonging to the order Gymnophiona (or Apoda). Most adult caecilians resemble earthworms superficially but have vertebr...

pinworm

(Encyclopedia)pinworm, roundworm, Enterobius vermicularis, worldwide in distribution and the most common source of worm infestation of humans in the United States. Children are more commonly infested than adults. A...

bloodhound

(Encyclopedia)bloodhound, breed of large hound whose ancestors were known in the Mediterranean region before the Christian era. It stands about 25 in. (63.5 cm) high at the shoulder and weighs between 80 and 110 lb...

Nuer

(Encyclopedia)Nuer no͞oˈər, no͝or [key], a Nilotic people living around Lake No in South Sudan. Their economy and social life generally revolve around cattle, which are grazed on the plains during the dry seaso...

moa

(Encyclopedia)moa mōˈə [key] [Maori], common name for an extinct flightless bird of New Zealand related to the kiwi, the emu, the cassowary, and the ostrich. The various species ranged in size from that of a tur...

molting

(Encyclopedia)molting, periodical shedding and renewal of the outer skin, exoskeleton, fur, or feathers of an animal. In most animals the process is triggered by secretions of the thyroid and pituitary glands. Near...

tent

(Encyclopedia)tent, portable shelter of canvas, skins, felt, matting, or other material usually supported by poles and used chiefly by nomads, hunters, and campers. Tents have been used by pastoral peoples since an...

gland

(Encyclopedia)gland, organ that manufactures chemical substances. A gland may vary from a single cell to a complex system of tubes that unite and open onto a surface through a duct. The endocrine glands, e.g., the ...

tree frog

(Encyclopedia)tree frog, name for any of the small tree- or shrub-inhabiting frogs of the family Hylidae, characterized by an adhesive disk on the tip of each of the clawlike toes. This family has about 300 species...

Browse by Subject