单词 | hypostome |
释义 | hypostome [`hī·pǝ´stōm] INVERTEBRATE ZOOLOGY 1. Projection surrounding the oral aperture in many cnidarian polyps. 2. Anteroventral part of the head in Diptera. 3. Median ventral mouthpart in ticks. 4. Raised area on the posterior oral margin in crustaceans. |
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