ironstone

== English == === Etymology === From iron +‎ stone. === Noun === ironstone (countable and uncountable, plural ironstones) Any ore of iron which is impure through the admixture of silica or clay. A type of vitreous pottery similar to stoneware. ==== Derived terms ==== ==== Translations ==== === References === William Dwight Whitney, Benjamin Eli Smith, editors (1895–1910), “ironstone”, in The Century Dictionary and Cyclopedia: […], New York, N.Y.: The Century Co., →OCLC. “ironstone”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC. === Anagrams === serotonin