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germ layer |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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germ layer [′jərm ‚lāยทər] (embryology) One of the primitive cell layers which appear in the early animal embryo and from which the embryo body is constructed. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In place of imaging human tissue layer by layer, as a medical CT scan does, the scientists assemble images of slivers of molecules into detailed portraits that, for the first time, depict the spatial distribution--the quantum actions--of the molecules' outermost electrons. The edges of the incision are inverted and sewn to the subcutaneous tissue layer in an effort to recreate a sulcus. Tucked inside a polyp's inner tissue layer are algae (plantlike microorganisms that produce their own food), called zooxanthellae (ZOH-sen-THEL-lee). |
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