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Webster 1913 Edition


Cingulum

‖

Cin′gu-lum

,
Noun.
[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.