Look-up History
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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| idle |
1 |
today |
not active or in use; not working or scheduled to work; unemployed; unoccupied. [10 definitions] |
Main |
Adv. |
| integral calculus |
1 |
today |
the branch of mathematics that deals with the properties of integrals and their use in solving differential equations and determining areas, volumes, and equations of curves. |
Main |
Adv. |
| optional |
1 |
today |
left to someone's choice; not required. |
Kids |
Ch. |
| doorway |
1 |
today |
the way of entrance into a room or building. |
Kids |
Ch. |