What does "porcelain" mean?

Additional senses

1. 2.A fine translucent or semitransculent kind of earthenware, made first in China and Japan, but now also in Europe and America; -- called also China, or China ware. Porcelain, by being pure, is apt to break. Dryden. Ivory porcelain, porcelain with a surface like ivory, produced by depolishing. See Depolishing. -- Porcelain clay. See under Clay. -- Porcelain crab (Zoöl.), any crab of the genus Porcellana and allied genera (family Porcellanidæ). They have a smooth, polished carapace. -- Porcelain jasper. (Min.) See Porcelanite. -- Porcelain printing, the transferring of an impression of an engraving to porcelain. -- Porcelain shell (Zoöl.), a cowry.