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1. (n.) tapetum
Bot. a layer of nutritive tissue in a developing sporangium or anther that is absorbed as the spore matures.
2. tapetum
Anat. any of certain membranous layers or layered coverings, as in the choroid coat in certain animals.
Etymology: (1705–15; < NL; ML tapētum coverlet (L, only pl.) < Gk tapēt-, s. of tápēs carpet)
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Webster Dictionary |
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1. (noun) tapetum
an area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark. Sometimes applied to the whole layer of pigmented epithelium of the choroid
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Definitions of tapetum 
