Englishfor English speakers
antiserum
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noun
blood serum containing antibodies against specific antigens; provides immunity to a disease
activity
Noun
—
When a person or animal has activity, it is active or lively.
The sleeping dog did not show much activity.
—
When you have a function to do, you have an activity.
The child has many after-school activities.
She participates in women's rights activities.