palladium

名词 n.
中文释义
发音 pəlā'dēəm

英文释义

名词 n.
  1. A safeguard.
    — The trial by jury is the Palladium of our civil rights.
  2. A chemical element (symbol Pd) with an atomic number of 46: a rare, lustrous silvery-white metal. countable,uncountable
  3. A single atom of this element. countable

词形变化

palladia plural palladiums plural

词汇关系

衍生词
allylpalladium dioxide of palladium dipalladium nonapalladium octapalladium organopalladium pallad- palladian palladic palladide palladiferous palladio- palladious palladium black palladium chloride palladium cyanide palladium dichloride palladium dinitrate palladium hydride palladiumise palladiumize palladium nitrate palladoan palladous pentapalladium protoxide of palladium radiopalladium testibiopalladite tetrapalladium
相关词
Pallas

词源

词源 1
The sense of "safeguard" comes from Latin Palladium (the image of Pallas that protected Troy), from Ancient Greek Παλλάδιον (Palládion), from Παλλάς (Pallás), an epithet used before Athena.
词源 2
The element was named after Pallas, an asteroid that had been discovered two years before the element.
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