Ce

Chemical element, a rare earth metal of the lanthanide series (hence having many properties of the transition elements), chemical symbol Ce, atomic number 58. It is iron-gray and fairly soft and ductile. Found in many ores, it is about as abundant as copper and three times as abundant as lead. The metal is used in alloys and other metallurgical applications and (because it oxidizes strongly and rapidly) in illumination, ignition, and signaling devices and in propellants. Misch metal, used in lighter flints, is 50percnt cerium. Cerium compounds (in which it has valence 3 or 4) are used in the mantles of lanterns, in the ceramic, photographic, and textile industries, and in analytical chemistry.

Learn more about cerium with a free trial on Britannica.com.

CE, Ce or ce may refer to:

CE

• Chief Executive, administrative head of some regions
• Common Era (CE), secular alternative to Anno Domini (AD)
• The Italian province of Caserta (CE)
• Cheat Engine
• Civil engineering
• Civil engineer
• Council of Europe, an international organization of 47 member states in the European region
• Communauté Européenne (French for the European Community)
• The CE mark, a stylized "CE" (for Conformité Européenne) placed on products to signify conformance with European Union regulations
• Critically endangered, a conservation status indicating an extremely high risk of extinction
• Continuing Education, a broad spectrum of post-secondary learning activities and programs
• Colonel Ebirt, former mascot for the College of William & Mary
• Capillary electrophoresis, a technique used to separate ionic species by their charge and frictional forces
• Nationwide Airlines (IATA airline designator CE; based in South Africa)
• Sri Lanka (FIPS Pub 10-4 and obsolete NATO country code CE, from the former name, Ceylon)
• Concord EFS, Inc. (stock symbol CE on the New York Stock Exchange)
• County executive, the head of the executive branch of county government, common in the United States
• Copy editing
• Combustion Engineering, a former American manufacturer of power systems. Sometimes given as C-E.
• Clear Entry, the "CE" button found on a pocket calculator.

In electronics

• Computer engineering
• Consumer electronics
• Windows CE, a version of the Windows operating system designed for mobile devices
• Central European, an alternate name for Windows-1250
• Customer Edge, a term used in Multiprotocol Label Switching computer networks
• Congestion Experienced, a protocol element of the Explicit Congestion Notification data networking protocol

In entertainment

• Collector's Edition (used with special editions of software and movies)
• Codename Eagle, a computer game developed by Stockholm-based studio Refraction Games
• Cosmic Era, a storyline in the anime metaseries Gundam
• Chaotic Evil, an alignment in the role-playing game Dungeons & Dragons
• Collective effervescence

Ce

• Cerium (symbol for the chemical element)

ce

• Chechen language (ISO 639-1 language code)

See also

• Œ (OE ligature)