| 单词 | serum |
| 释义 | Word Frequency serum(ˈsɪərəm) nounWord forms: plural -rums or -ra (-rə) 1. blood serum 2. antitoxin obtained from the blood serum of immunized animals 3. physiology, zoology clear watery fluid, esp that exuded by serous membranes 4. a less common word for whey Derived forms serumal (ˈserumal) adjective Word origin C17: from Latin: whey |
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