Source : WordNet®

Ci
     n : a unit of radioactivity equal to the amount of a radioactive
         isotope that decays at the rate of 37,000,000,000
         disintegrations per second [syn: {curie}]

Source : Free On-Line Dictionary of Computing

ci
     
         The {country code} for Cote d'Ivoire (the Ivory
        Coast).
     
        [{Jargon File}]
     
        (1999-01-27)

CI$
     
        CIS, {CompuServe Information Service}.  Also {Compu$erve}.
        The dollar sign refers to CompuServe's rather steep line
        charges.  Often used in {sig block}s just before a CompuServe
        address.
     
        [{Jargon File}]
     
        (1995-01-25)