| 单词 | Eumalacostraca | 
| 释义 | Eumalacostraca [yü´mal·ǝ`käs·trǝ·kǝ]  INVERTEBRATE ZOOLOGY A series of the class Crustacea comprising shrimplike crustaceans having eight thoracic segments, six abdominal segments, and a telson.  | 
	
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