Cingulum, from the latin for girdle, can refer to:

• The white matter tract in the brain. See Cingulum (anatomy)
• The basal ridge of a tooth
• A type of groove on the theca of dinoflagellates.
• The Roman military belt (cingulum militare). Heavily decorated with metal ornaments and designed to hold the sword (gladius) and dagger (pugio). Ancient Roman original cingulum parts can be seen on the pages of the Roman Military Equipment Web museum
• A ritual cord used in British Traditional Wicca, see here

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