cingulum
noun
cin·gu·lum ˈsiŋ-gyə-ləm 
plural cingula ˈsiŋ-gyə-lə
: an anatomical band or encircling ridge
cingulate
ˈsiŋ-gyə-lət
adjective 
Word History
Etymology
New Latin, from Latin, girdle, from cingere to gird — more at cincture
First Known Use
1845, in the meaning defined above
Medical Definition
cingulum
noun
cin·gu·lum ˈsiŋ-gyə-ləm
plural cingula -lə
1
: a ridge about the base of the crown of a tooth
2
: a tract of association fibers lying within the cingulate gyrus and connecting the callosal and hippocampal convolutions of the brain