Definition of CIS

Noun: CIS

1. An alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
   - Commonwealth of Independent States

1. 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
   - curie

See also:
cirsoid
cisalpine

Anagrams containing the word CIS

cis sci isc