cingular (SING-gyuh-luhr) adjective

1. Of or pertaining to a cingulum, an anatomical band or girdle on an
animal or plant.

2. Encircling, girdling, surrounding.



Also has to do with dentistry

http://dictionary.reference.com/search?q=cingular&r=66

Must be very obscure as gets only 4 hits on OneLook



dalehileman