CCN

acronym: cloud condensation nuclei
Found on http://cdiac.ornl.gov/pns/acronyms.html#C

CCN

See Community Care Network.
Found on http://www.pohly.com/terms_c.html

CCN

Cooperative Caring Network
Found on http://www.encyclo.co.uk/local/20895

CCN

Critical Care Nurse [periodical, périodique]
Found on http://www.encyclo.co.uk/local/20895

CCN

Contract Change Number
Found on http://www.met.police.uk/foi/glossary.htm
No exact match found