Definition of tapetum
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
Recent Examples of tapetum from the Web
Some creatures, including cats, raccoons, and dogs, have a layer of reflective tissue in their eyes known as the tapetum lucidum.
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Origin and Etymology of tapetum
New Latin, from Latin tapete carpet, tapestry, from Greek tapēt-, tapēs carpet
First Known Use: 1713See Words from the same year
Medical Definition of tapetum
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
Learn More about tapetum
Britannica.com: Encyclopedia article about tapetum
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