| 单词 | apterium |
| 释义 | apterous /apˈtə-rəs/adjective (biology)Wingless ORIGIN: Gr a- (privative), and pteron feather, wing, side-wall apˈteral adjective
apˈterism noun (zoology) Winglessness apterium /ap-tēˈri-əm/ noun (pl apteˈria) (ornithology) A bare patch on a bird's skin |
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