Columbia Encyclopedia

Search results

500 results found

Vegetius

(Encyclopedia)Vegetius (Flavius Vegetius Renatus) vĭjēˈshəs [key], fl. c.385–400, Roman writer. He is the author of Epitoma rei militaris [a summary of military matters], which is an important source of infor...

Big Rapids

(Encyclopedia)Big Rapids, city (2020 pop. 7,727), seat of Mecosta co., W central Mich., at the falls of the Muskegon River; inc. 1869. Agriculture and light manufactu...

Baghlan

(Encyclopedia)Baghlan bägˈlän [key], city (1982 est. pop. 41,200), N Afghanistan, on the Kunduz River. It produces beet sugar, cotton, and fabrics. A recently constructed highway system links Baghlan with Kabul ...

Simcoe, Lake

(Encyclopedia)Simcoe, Lake, 539 sq mi (1,396 sq km), S Ont., Canada, between Georgian Bay and Lake Ontario. Cook Bay, Kempenfelt Bay, and Lake Couchiching are arms of the lake. Lake Simcoe drains N through the Seve...

Copernicus, Nicholas

(Encyclopedia)Copernicus, Nicholas kōpûrˈnĭkəs [key], Pol. Mikotaj Kopérnik, 1473–1543, Polish astronomer. After studying astronomy at the Univ. of Kraków, he spent a number of years in Italy studying vari...

Hodgkin's disease

(Encyclopedia)Hodgkin's disease, a type of cancer of the lymphatic system. First identified in 1832 in England by Thomas Hodgkin, it is a type of malignant lymphoma. Incidence peaks in young adults and the elderly....

Michigan, University of

(Encyclopedia)Michigan, University of, main campus at Ann Arbor; state supported; coeducational; chartered 1817 at Detroit as the Catholepistemiad, or Univ., of Michigania, rechartered 1821 (as Univ. of Mich.) and ...

vital statistics

(Encyclopedia)vital statistics, primarily records of the number of births and deaths in a population. Other factors, such as number of marriages and causes of death, by age groups, are regularly included. From thes...

Castor, in astronomy

(Encyclopedia)Castor kăsˈtər [key], bright star in the constellation Gemini; Bayer designation α Geminorum; 1992 position R.A. 7h34.1m, Dec. +31°54′. Slightly dimmer than Pollux, with which it forms the Twin...

biometrics, in security and personal identification

(Encyclopedia)biometrics, in security and personal identification, the electronic verification of individuals using biological traits, such as iris or retinal scanning, fingerprints, or face recognition, and the te...