Columbia Encyclopedia

Search results

243 results found

blood test

(Encyclopedia)blood test, examination of blood routinely or as an aid in diagnosing a suspected disease. Tests may be performed on whole blood or on the plasma portion only. Blood typing identifies the proteins at ...

larynx

(Encyclopedia)larynx lârˈĭngks [key], organ of voice in mammals. Commonly known as the voice box, the larynx is a tubular chamber about 2 in. (5 cm) high, consisting of walls of cartilage bound by ligaments and ...

histology

(Encyclopedia)histology hĭstŏlˈəjē [key], study of the groups of specialized cells called tissues that are found in most multicellular plants and animals. Histologists study the organization of tissues at all ...

electric fish

(Encyclopedia)electric fish, name for various fish that produce electricity by means of organs usually developed from modified muscle tissue. The electric eels of South America are freshwater knifefish unrelated to...

Schlegel, Friedrich von

(Encyclopedia)Schlegel, Friedrich von fən shlāˈgəl [key], 1772–1829, German philosopher, critic, and writer, most prominent of the founders of German romanticism. Educated in law at Göttingen and Leipzig, h...

Tura, Cosmé

(Encyclopedia)Tura, Cosmé or Cosimo kōzmāˈ to͞oˈrä, kôˈzēmō [key], c.1430–1495, Italian Renaissance artist. He was a leading master of the school of Ferrara and court painter to the city's ruling Este ...

octopus

(Encyclopedia)octopus, cephalopod mollusk having no shell, eight muscular arms or tentacles, a pouch-shaped body, and two large, highly developed eyes. The prey (crabs, lobsters, and other shellfish) is seized by t...

Vaughan Williams, Ralph

(Encyclopedia)Vaughan Williams, Ralph, 1872–1958, English composer, considered the outstanding composer of his generation in England. He graduated from Trinity College, Cambridge, in 1894 and studied composition ...

lizard

(Encyclopedia)lizard, a reptile of the order Squamata, which also includes the snake. Lizards form the suborder Sauria, and there are over 3,000 lizard species distributed throughout the world (except for the polar...

acupuncture

(Encyclopedia)CE5 Acupuncture points for treating diseases of the large intestine. acupuncture ăkˈyo͝opŭngˌchər [key], technique of traditional Chinese medicine, in which a number of very fine metal needl...