cingulum

2 definitions found

cingulum - Collaborative International Dictionary of English v.0.48 :

  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]

cingulum - WordNet (r) 2.1 (2005) :

  cingulum
      n 1: (anatomy) an encircling structure (as the ridge around the
           base of a tooth)