Columbia Encyclopedia

Search results

219 results found

ecology

(Encyclopedia)ecology, study of the relationships of organisms to their physical environment and to one another. The study of an individual organism or a single species is termed autecology; the study of groups of ...

feminism

(Encyclopedia)feminism, movement for the political, social, and educational equality of women with men; the movement has occurred mainly in Europe and the United States. It has its roots in the humanism of the 18th...

Germanic religion

(Encyclopedia)Germanic religion, pre-Christian religious practices among the tribes of Western Europe, Germany, and Scandinavia. The main sources for our knowledge are the Germania of Tacitus and the Elder Edda and...

Chaucer, Geoffrey

(Encyclopedia)Chaucer, Geoffrey jĕfˈrē chôˈsər [key], c.1340–1400, English poet, one of the most important figures in English literature. To Chaucer's final period, in which he achieved his fullest artist...

Roman religion

(Encyclopedia)Roman religion, the religious beliefs and practices of the people of ancient Rome. The spirits were held in awe and were placated with offerings and prayers. In the earliest period of Roman state r...

Afroasiatic languages

(Encyclopedia)Afroasiatic languages hămˈĭtō-səmĭtˈĭk [key], family of languages spoken by more than 250 million people in N Africa; much of the Sahara; parts of E, central, and W Africa; and W Asia (especia...

circulatory system

(Encyclopedia)CE5 Circulatory system circulatory system, group of organs that transport blood and the substances it carries to and from all parts of the body. The circulatory system can be considered as compose...

refugee

(Encyclopedia)refugee, one who leaves one's native land either because of expulsion or to escape persecution. The legal problem of accepting refugees is discussed under asylum; this article considers only mass disl...

reproduction

(Encyclopedia)CE5 Examples of asexual reproduction reproduction, capacity of all living systems to give rise to new systems similar to themselves. The term reproduction may refer to this power of self-duplicati...

Counter Reformation

(Encyclopedia)Counter Reformation, 16th-century reformation that arose largely in answer to the Protestant Reformation; sometimes called the Catholic Reformation. Although the Roman Catholic reformers shared the Pr...