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ca.

 - 4 dictionary results

ca.

1. cathode.
2. centiare.
3. Also, ca (with a year) about: ca. 476 b.c.

Origin:
(def. 3) < L circā

cir⋅ca

[sur-kuh]
–preposition, adverb
about: (used esp. in) approximate dates: The Venerable Bede was born circa 673. Abbreviation: ca, ca., c., c, cir., circ.

Origin:
1860–65; < L: around, about, akin to circus circus
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Word Origin & History

circa 
1861, from L. circa "about."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

circa (sûr'kə)
prep.
Abbr. ca
In approximately; about.

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