| 单词 | Cyclostomata |
| 释义 | Cyclostomata [¦sī·klō`stō·mǝ·dǝ] INVERTEBRATE ZOOLOGY An order of bryozoans in the class Stenolaemata. VERTEBRATE ZOOLOGY A subclass comprising the simplest and most primitive of living vertebrates characterized by the absence of jaws and the presence of a single median nostril and an uncalcified cartilaginous skeleton. |
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