tapetum

noun

ta·pe·tum | \ tə-ˈpē-təm

plural tapeta\ tə-ˈpē-tə

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 on the Web

Some creatures, including cats, raccoons, and dogs, have a layer of reflective tissue in their eyes known as the tapetum lucidum. — Matt Simon, WIRED, "Fantastically Wrong: Why So Many People Think They’ve Seen Ghost Dogs With Glowing Eyes," 14 Jan. 2015

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More Definitions for tapetum

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