| 单词 | rectrix |
| 释义 | Word Frequency rectrix(ˈrɛktrɪks) nounWord forms: plural rectrices (ˈrɛktrɪˌsiːz, rɛkˈtraɪsiːz) any of the large stiff feathers of a bird's tail, used in controlling the direction of flight Derived forms rectricial (rɛkˈtrɪʃəl) adjective Word origin C17: from Late Latin, feminine of rector governor, rector |
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