Definition of "porcellaneous" []

• Of or relating to porcelain; resembling porcelain. (adjective)
• Having a smooth, compact shell without pores; said of certain Foraminifera. (adjective)

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• "The commonest of the giant clams TRIDACNA GIGAS sometimes betrays evidence of past internal trouble by the presence of a concretion of porcelain whiteness and of porcellaneous texture, but such are not to be described as pearls and to be prized as rarities only."
• "Without appearing to suggest anything beyond a trifling blemish in this story, replete as it is with edifying illustrations of the frailties of human nature, it would be well to remember that the helmet shell (CASSIS FLAMMEA) is not nacreous and could not therefore produce a true pearl, but merely g porcellaneous concretion, which, however, might possess a most attractive tint, possibly pale salmon or orange."
• "GIGAS sometimes betrays evidence of past internal trouble by the presence of a concretion of porcelain whiteness and of porcellaneous texture, but such are not to be described as pearls and to be prized as rarities only."