di·dym·i·um 
(dī-dĭmē-əm)
(dī-dĭmē-əm)n.
1. A metallic mixture, once considered an element, composed of neodymium and praseodymium.
2. A mixture of rare-earth elements and their oxides used chiefly in manufacturing and in coloring various forms of glass.
[From Greek didumos, twin, double (from the fact that it was usually found associated with the previously discovered lanthanum); see dwo- in the Appendix of Indo-European roots.]
- Indo-European root: ken-
- Indo-European root: kenk-
- Indo-European root: kens-
- Indo-European root: kent-
- Indo-European root: ker-
- Indo-European root: ker-
- Indo-European root: ker-
- Indo-European root: kerd-
- Indo-European root: kerp-
- Indo-European root: kers-
- Indo-European root: kerə-
- Indo-European root: kes-
- Indo-European root: keuə-
- Indo-European root: klei-
- Indo-European root: kleu-
- Indo-European root: ko-
- Indo-European root: kob-
- Indo-European root: kom
- Indo-European root: konk-
- Indo-European root: koro-
- Indo-European root: kost-
- Indo-European root: kous-
- Indo-European root: krei-
- Indo-European root: kreus-
- Indo-European root: kreuə-