- vellum⇄adj. made of or resembling vellum.
- vellum⇄noun 1. the finest kind of parchment, usually prepared from the skins of calves, kids, or lambs, once used instead of paper for books. Some very expensive books are still bound in vellum.
2. a manuscript, testimonial, or degree written or printed - vellum⇄vellum, noun, adjective.