As a noun porcelain is
(usually|uncountable) a hard, white, translucent ceramic that is made by firing kaolin and other materials; china.
teracotta
Not English
Teracotta has no English definition. It may be misspelled.
porcelain
English
Noun
(
wikipedia porcelain)
(usually, uncountable) A hard, white, translucent ceramic that is made by firing kaolin and other materials; china.
(usually, countable) Anything manufactured from this material..
Derived terms
* ivory porcelain
* porcelain clay
* porcelain crab
* porcelain jasper
* porcelain printing
* porcelain shell
* porcelaneous
References
* Krueger, Dennis (December 1982). "Why On Earth Do They Call It Throwing?" Studio Potter Vol. 11, Number 1.[http://www.studiopotter.org/articles/?art=art0001]