Look-up History
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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| puff |
1 |
today |
a short, strong burst of breath, air, smoke, or steam. [8 definitions] |
Main |
Int. |
| conservation of energy |
1 |
today |
a principle of physics that asserts that the total energy in a closed system remains constant regardless of changes in the system. |
Main |
Adv. |
| hole |
1 |
today |
an opening or hollow cavity in something. [3 definitions] |
Main |
Int. |
| measure |
1 |
today |
the exact size, weight, or amount of something that is found by using a ruler, yardstick, scale, or similar device. [7 definitions] |
Kids |
Ch. |
| gear |
1 |
today |
a part of a machine that causes another part to move because of teeth which connect the two moving parts. [4 definitions] |
Main |
Int. |