| 单词 | Tunicata |
| 释义 | Tunicata [´tü·nǝ`käd·ǝ] INVERTEBRATE ZOOLOGY A subphylum of the Chordata characterized by restriction of the notochord to the tail and posterior body of the larva, absence of mesodermal segmentation, and secretion of an outer covering or tunic about the body. |
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