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单词	tapetum
释义	tapetum noun ta·​pe·​tum tə-ˈpē-təm  plural tapeta tə-ˈpē-tə  1 : any of various reflective membranous layers or areas especially of the choroid and retina of the eye 2 : a layer of nutritive cells that invests the sporogenous tissue in the sporangium of vascular plants Example Sentences Recent Examples on the Web Exactly how the tapetum’s fibers close in on one another isn’t yet clear, even two decades in. Katherine J. Wu, The Atlantic, 28 June 2022 The part of the eye that changes color is the tapetum lucidum, a layer of tissue found behind the retina. Nayeli Lomeli, USA TODAY, 15 Dec. 2021 The tapetum lucidum, which lines most of the back of the retina, comes into play in low-light situations, allowing the cat's eye to take in extra light. Star Tribune, 21 May 2021 Some creatures, including cats, raccoons, and dogs, have a layer of reflective tissue in their eyes known as the tapetum lucidum. Matt Simon, WIRED, 14 Jan. 2015 Word History Etymology New Latin, from Latin tapete carpet, tapestry, from Greek tapēt-, tapēs carpet First Known Use 1713, in the meaning defined at sense 1 Medical Definition tapetum noun ta·​pe·​tum tə-ˈpēt-əm  plural tapeta -ˈpēt-ə  1 : any of various membranous layers or areas especially of the choroid and retina of the eye specifically : tapetum lucidum 2 : a layer of nerve fibers derived from the corpus callosum and forming part of the roof of each lateral ventricle of the brain
随便看	biosocially biosociological biosociology biosolid biosolids biosome biospeleologist biospeleology biosphere biospheres biospheric biostatistical biostatistician biostatisticians biostatistics biostratigraphic biostratigraphic unit biostratigraphies biostratigraphy biostromal biostrome biostromes bioswale bioswales biosyntheses

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