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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
poliomyelitis |
1 |
today |
a disease caused by a virus that attacks the spinal cord and damages the nervous system. Poliomyelitis affects mainly children and can lead to paralysis or deformed limbs. Jonas Salk invented a vaccine that prevents poliomyelitis. |
Kids |
Ch. |
battery |
1 |
today |
a device that generates electricity by means of chemical reactions. [5 definitions] |
Main |
Adv. |