Columbia Encyclopedia

Search results

500 results found

Ordinance of 1787

(Encyclopedia)Ordinance of 1787, adopted by the Congress of Confederation for the government of the Western territories ceded to the United States by the states. It created the Northwest Territory and is frequently...

isomer

(Encyclopedia)isomer īˈsəmər [key], in chemistry, one of two or more compounds having the same molecular formula but different structures (arrangements of atoms in the molecule). Isomerism is the occurrence of ...

euthanasia

(Encyclopedia)euthanasia yo͞oˌthənāˈzhə [key], either painlessly putting to death or failing to prevent death from natural causes in cases of terminal illness or irreversible coma. The term comes from the Gre...

light

(Encyclopedia)light, visible electromagnetic radiation. Of the entire electromagnetic spectrum, the human eye is sensitive to only a tiny part, the part that is called light. The wavelengths of visible light range ...

Confederate cruisers

(Encyclopedia)Confederate cruisers, in U.S. history, warships constituting the South's seagoing navy. At the outbreak of the Civil War the United States ranked next to Great Britain in merchant marine. Since almost...

Code Napoléon

(Encyclopedia)Code Napoléon sēvēlˈ [key], first modern legal code of France, promulgated by Napoleon I in 1804. The work of J. J. Cambacérès and a commission of four appointed by Napoleon I in 1800 was import...

Harijans

(Encyclopedia)Harijans hârˈĭjănzˌ [key] [children of God], in India, individuals who are at the bottom of or outside the Hindu caste system. They were traditionally sweepers, washers of clothes, leatherworkers...

Ghose, Aurobindo

(Encyclopedia)Ghose, Aurobindo ôrōbĭnˈdō gōsh [key], 1872–1950, Indian nationalist leader and mystic philosopher. Born in Bengal, he was sent to England and lived there for 14 years, completing his educatio...

LSD

(Encyclopedia)LSD or lysergic acid diethylamide līˌsûrˈjĭk, dīˌĕthˈələmĭd, dīˌĕthəlămˈĭd [key], alkaloid synthesized from lysergic acid, which is found in the fungus ergot (Claviceps purpurea). I...

baby boom

(Encyclopedia)baby boom, a period in which the birthrate is significantly higher than in other periods, especially the post–World War II period in the United States, Canada, Australia, and New Zealand. In the Uni...

Browse by Subject