(Science: botany) Purslain.
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 Clay.
(Science: zoology) Porcelain crab, a cowry.
Origin: F. Porcelaine, It. Porcellana, orig, the porcelain shell, or Venus shell (Cypraea porcellana), from a dim. Fr. L. Porcus pig, probably from the resemblance of the shell in shape to a pig's back. Porcelain was called after this shell, either on account of its smoothness and whiteness, or because it was believed to be made from it. See Pork.