| 单词 | rickettsia |
| 释义 | Word Frequency rickettsia(rɪˈkɛtsɪə) nounWord forms: plural -siae (-sɪˌiː) or -sias any of a group of parasitic bacteria that live in the tissues of ticks, mites, and other arthropods, and cause disease when transmitted to humans and other animals Derived forms rickettsial (rickˈettsial) adjective Word origin C20: named after Howard T. Ricketts (1871–1910), US pathologist |
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