didymium

noun
di·dym·i·um | \dī-ˈdi-mē-əm \

Definition of didymium 

: a mixture of rare earth elements made up chiefly of neodymium and praseodymium and used especially for coloring glass for optical filters

First Known Use of didymium

1842, in the meaning defined above

History and Etymology for didymium

New Latin, from Greek didymos twin, from dyo two — more at two

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Dictionary Entries near didymium

Didus

didy

didym-

didymium

didymo

didymolite

didymous

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The first known use of didymium was in 1842

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