| 单词 | serum |
| 释义 | serum n. (pl. sera or serums) 1. a an amber-coloured liquid that separates from a clot when blood coagulates. b whey. 2. Med. blood serum (usu. from a non-human mammal) as an antitoxin or therapeutic agent, esp. in inoculation. 3. a watery fluid in animal bodies. Phrases and idioms serum sickness a reaction to an injection of serum, characterized by skin eruption, fever, etc. Etymology: L, = whey |
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