from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A supposed chemical element discovered in 1877, later found to be a mixture of iridium and rhodium.
from the GNU version of the Collaborative International Dictionary of English
- n. A rare metallic element found in platinum ore. It is a white malleable substance. Symbol Da. Atomic weight 154.
from The Century Dictionary and Cyclopedia
- n. A metal of the platinum group, whose discovery was announced in 1877 by Kern of St. Petersburg.
Davy + -um (Wiktionary)