Cingulum

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cingulum \Cin"gu*lum\, n. [L., a girdle.] (Zool.)
     (a) A distinct girdle or band of color; a raised spiral line
         as seen on certain univalve shells.
     (b) The clitellus of earthworms.
     (c) The base of the crown of a tooth.
         [1913 Webster]



From WordNet (r) 2.0 [wn]:

  cingulum
       n : (anatomy) an encircling girdle-like structure (as the ridge
           around the base of a tooth)
       [also: {cingula} (pl)]