- - unusual planet to find some elements
- - Metallic element, rather odd, gathering attention
- - Type of element
- - unusual planet revealing some elements
- - promethium's element class
- - Such elements are rather exotic
- - Element class including cerium
- - Oxide of cerium, yttrium, etc.
- - Element class including yttrium
- - Element class including scandium
- - Kind of element
- - Erbium, for one
- - Motown band of the '70s
- - Metal such as cerium
- - Erbium, e.g.
- - Band with the 1970 hit "Get Ready"
- - Kind of metal
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