| 单词 | Merostomata | 
| 释义 | Merostomata [´mer·ǝ`stō·mǝ·dǝ]  INVERTEBRATE ZOOLOGY A class of primitive arthropods of the subphylum Chelicerata distinguished by their aquatic mode of life and the possession of abdominal appendages which bear respiratory organs; only three living species are known.  | 
	
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