gray bread

Bread made of rye or oats. gray-carpet, s. gray copper-ore, s. 2069 Min.: The same as TETRAHEDRITE (q. v.). gray-cotton, s. Comm.: Unbleached and undyed cotton cloth. gray-duck, 8. Zool.: The female mallard; the gadwell. gray-fibers, s. pl. Anat .: Pale gray fibers found with or without white ones in the sympathetic or other nerves. They were first discovered by Remak, and are often called after his name. (Quain.)