lanthanoid Chem.
(ˈlænθənɔɪd)
[f. lanthanide + -oid.]
Any element of the lanthanide series (including lanthanum).
| 1953 Barnett & Wilson Inorg. Chem. xii. 135 In modern nomenclature the term ‘lanthanons’, with variations such as ‘lanthanides’, ‘lanthanates’, ‘lanthanoids’ and ‘lanthans’ is replacing ‘rare earths’. 1969 H. T. Evans tr. Hägg's Gen. & Inorg. Chem. xxviii. 681 The colored lanthanoid ions are used in many ways in the glass industry. 1971 Nomencl. Inorg. Chem. (I.U.P.A.C.) (ed. 2) 11 The name lanthanoids for the elements 57–71 (La to Lu inclusive) is recommended. |