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serum
mastery UK /ˈsɪəɹəm/ US /ˈsɪɹəm/noun
card 1 of 10 · context meaning
Which meaning of 'serum' best matches its use in the sentence?
The convalescent serum from recovered patients was used to treat those still ill.
card 1 of 10 · context meaning
Which meaning of 'serum' best matches its use in the sentence?
The convalescent serum from recovered patients was used to treat those still ill.