vel·lum /ˈvɛləm/
上等皮紙,皮紙文書,牛皮紙(a.)牛皮紙的
Vel·lum n. A fine kind of parchment, usually made from calfskin, and rendered clear and white, -- used as for writing upon, and for binding books.
Vellum cloth, a fine kind of cotton fabric, made very transparent, and used as a tracing cloth.
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vellum
n 1: a heavy creamy-colored paper resembling parchment
2: fine parchment prepared from the skin of a young animal e.g.
a calf or lamb