Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline

Word Origin & History

C.E.

as an abbreviation for "Common Era" or "Christian Era," and a non-Christian alternative to A.D., attested from 1838 in works on Jewish history. Companion B.C.E. is attested from 1881.

Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage

Medical Dictionary

Ce
The symbol for the element cerium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage

Science Dictionary

Ce
The symbol for cerium.

CE
Abbreviation for Common Era.

cerium (sîr'ē-əm) Pronunciation Key
Symbol Ce
A shiny, gray metallic element of the lanthanide series. It is ductile and malleable and is used in electronic components, alloys, and lighter flints. It is also used in glass polishing and as a catalyst in self-cleaning ovens. Atomic number 58; atomic weight 140.12; melting point 795°C; boiling point 3,468°C; specific gravity 6.67 to 8.23; valence 3, 4. See Periodic Table.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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FOLDOC

Computing Dictionary