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| 单词 | edge-zone |
| 释义 | > as lemmasedge-zone edge-zone n. (see quot. 1902). ΚΠ 1902 Encycl. Brit. XXV. 459/2 A fold of soft tissue extending to a greater or less distance over the theca, and containing..a cavity continuous over the lip of the calicle with the cœlenteron. This fold of tissue is known as the edge-zone. 1904 Ann. & Mag. Nat. Hist. 13 22 The epitheca is that part of the skeleton secreted by the edge-zone. < as lemmas |
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