| 单词 | ecarinate | 
| 释义 | ecarinate in British English (iːˈkærɪnɪt) adjective  biology  having no carina or keel Word origin e-1 + carinateecarinate in American English (iˈkærəˌneit) adjective  Botany & Zoology  having no carina or keel  Word origin  [e- + carinate]e- is a prefix meaning “out of,” “from,” and hence “utterly,” “thoroughly,” and sometimesimparting a privative or negative force. Other words that use the affix e- include: educate, emission, erase, erect, evacuate | 
	
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