noun
- 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.
- An alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991.
- synonyms: Commonwealth of Independent States
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). cis. Retrieved September 23, 2026, from http://smartdefine.org/cis/definitions/1265625 |
| Chicago | WordNet. 2010. "cis" http://smartdefine.org/cis/definitions/1265625 (accessed September 23, 2026). |
| Harvard | WordNet 2010, cis, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/cis/definitions/1265625>. |
| MLA | WordNet. "cis" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/cis/definitions/1265625> |