periclase pericladium • periclasia · · · Info · Definitions · Synonyms · Characters · · periclase · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a white solid mineral that occurs naturally as periclase; a source of magnesium. Synonyms: magnesia, magnesium oxide. · · Noun Definition 1 Synonyms · · · magnesia · · Synonym 1 magnesium oxide · · Synonym 2 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073