from The Century Dictionary and Cyclopedia
- n. In photography: A size of plate measuring 3¼ × 4¼ inches. The half-plate measures 4¼ × 5½ inches in the United States (4¾ × 6½ in England), and the whole-plate 6½ × 8⅓ inches.
- n. A plate of this size, or a picture made from such a plate.
Sorry, no etymologies found.