Look-up History
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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| weapon |
1 |
today |
an object or device used to attack or defend. [2 definitions] |
Main |
Int. |
| reverse osmosis |
1 |
today |
a method of filtering pure water molecules out of salt water or polluted water by forcing the water through a semipermeable membrane. |
Kids |
Adv. |
| acupuncture |
1 |
today |
the practice of relieving pain or curing a disease by putting needles into certain parts of the body. Acupuncture is a traditional way to treat disease in China. |
Main |
Int. |