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Word |
# |
Date |
Definition |
Site |
Level |
| platinum |
1 |
today |
a chemical element that has seventy-eight protons in each nucleus and that occurs in pure form as a dense, highly malleable, lustrous silvery white solid metal, used as a catalyst, in a variety of alloys, and in making jewelry. (symbol: Pt) [2 definitions] |
Main |
Adv. |