Ceras may refer to: \n* the singular of Cerata, anatomical structures found in nudibranch sea slugs, marine opisthobranch gastropod mollusks \n* Ceras (gastropod), a mollusc genus in the family Subulinidae \n* Centre de Recherche et d’action sociales, a French association created in 1903 by Society of Jesus \n* "-ceras", a suffix used to describe many horned animals __DISAMBIG__