zirconium zirconifluoride • zirconium dioxide · · · Info · Definitions · Synonyms · Characters · · zirconium · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon. Synonyms: Zr, atomic number 40. · · Noun Definition 1 Synonyms · · · zr · · Synonym 1 atomic number 40 · · Synonym 2 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 u latin small letter u U+0075 z latin small letter z U+007A