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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| arsenic |
1 |
today |
a poisonous chemical element that has thirty-three protons in each nucleus and occurs in brittle, grayish white crystalline masses or in yellow or black allotropes. (symbol: As) [2 definitions] |
Main |
Adv. |
| problem |
1 |
today |
a question or condition that is difficult to understand or to deal with. [3 definitions] |
Main |
Int. |