didymium

Noun

Meaning

A rare metallic substance usually associated with the metal cerium; -- hence its name. It was formerly supposed to be an element, but has since been found to consist of two simpler elementary substances, neodymium and praseodymium. See Neodymium, and Praseodymium.

Examples

Neodymium is a component of " didymium " (referring to mixture of salts of neodymium and praseodymium ) used for coloring glass to make welder 's and glass-blower's goggles; the sharp absorption bands obliterate the strong sodium emission at 589 nm. Source: Internet

Neodymium and didymium glass are used in color-enhancing filters in indoor photography, particularly in filtering out the yellow hues from incandescent lighting. Source: Internet

For example, there was a so-called "element" that was even given the chemical name of " didymium ". Source: Internet

Close letter words and terms