| Palladium (palladium) |
|---|
| n. | (?) |
|---|
| Pal*la"di*um |
| [L., fr. Gr. (?),
fr. (?), (?), Pallas.]
|
Any statue of the
goddess Pallas; esp., the famous statue on the preservation of which
depended the safety of ancient Troy.
Hence: That which affords effectual
protection or security; a safeguard; as, the trial by jury is the
palladium of our civil rights.
|
| Palladium (palladium) |
|---|
| n. | |
|---|
| Pal*la"di*um |
|
A rare metallic element of the light platinum group, found
native, and also alloyed with platinum and gold. It is a silver-white
metal resembling platinum, and like it permanent and untarnished in
the air, but is more easily fusible. It is unique in its power of
occluding hydrogen, which it does to the extent of nearly a thousand
volumes, forming the alloy Pd2H. It is used for graduated
circles and verniers, for plating certain silver goods, and somewhat
in dentistry. It was so named in 1804 by Wollaston from the asteroid
Pallas, which was discovered in 1802. Symbol Pd. Atomic weight,
106.2.
|
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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 