Topic: DRUGS, MEDICINES
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| Date: | 1600-1700 |
| Language: | Latin |
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se‧rum
plural serums or sera [uncountable and countable]
plural serums or sera [uncountable and countable]1MD medical a liquid containing substances that fight infection or poison, that is put into a sick person's blood ➔ vaccine
2 technicalHB the thin part of blood or the liquid from a plant
