| 1. | A small gemma or similar structure, especially a reproductive structure in some sponges that remains dormant through the winter and later develops into a new individual. |
| 微芽，小芽，原芽一种小的胚芽或相似构造，尤其一具有繁殖能力的构造，存在于一些幼芽中，在整个冬季处于蛰伏状态，以后可发展为一新个体 |
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| 2. | A similar structure in embryos of higher vertebrates, from which the spinal column develops. |
| 脊索更为高等的脊椎动物胚胎中的类似结构，脊椎骨由此发育 |
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| 3. | A similar structure in which fish, insects, or other animals deposit eggs or keep their young. |
| 窟鱼、昆虫或其它动物产卵或养幼雏的一种类似结构 |
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| 4. | (biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure. |
| （生物化学）一个化学物质跟另一个结构相似的物质冲突的生理活动。 |
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| 5. | Having a similar structure or appearance but being of different ancestry. |
| 同形的具有类似的结构或外表但世系不同的 |
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| 6. | "a similar structure in other animals, such as turtles, insects, or fish." |
| 其它动物类似的喙状结构,如海龟、昆虫或鱼类。 |
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| 7. | A similar structure that produces spores on club mosses, horsetails, and spike mosses. |
| 球果结构在石松、木贼和穗状苔藓植物上产生孢子的类似的结构 |
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| 8. | A hole, usually with a cover, through which a person may enter a sewer, boiler, drain, or similar structure. |
| 下水道出入孔一种常带有盖的孔道,人可以由此孔进出排道、锅炉、下水管或类似设施 |
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| 9. | A similar structure in invertebrates, such as one of the pointed denticles or ridges on the exoskeleton of an arthropod or the shell of a mollusk. |
| （其他动物的）齿非脊椎动物的类似器官，例如节肢动物的外骨骼或软体动物的外壳上的尖锐小齿或小突起 |
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| 10. | A similar structure used for supporting or suspending. |
| 架状物，吊架一种用于支撑或悬挂的类似的结构物 |
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