from the GNU version of the Collaborative International Dictionary of English
- n. metallic platinum in a gray, porous, spongy form, obtained by reducing the double chloride of platinum and ammonium. It absorbs oxygen, hydrogen, and certain other gases, to a high degree, and is employed as an agent in oxidizing.
- n. See under Platinum.
from The Century Dictionary and Cyclopedia
- n. See platinum.
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