- n Cestum Venus's girdle
Century Dictionary and Cyclopedia
- n cestum The typical and only genus of tæniate ctenophorans constituting the family Cestidæ. They have a ribbon-like body without oral lobes, and two tentacles near the mouth; each half of the ctenophoral system is represented by four very long canals. Cestum veneris, Venus's-girdle, the common Mediterranean species, is a gelatinous ribbon-like organism several feet long and about two inches across; it exhibits phosphorescence. Also Cestus.