noun, plural tapeta
[tuh-pee-tuh] /təˈpi tə/ (Show IPA)
Botany. a layer of cells often investing the archespore in a developing sporangium and absorbed as the spores mature.
Anatomy, Zoology. any of certain membranous layers or layered coverings, as in the choroid of the eyes of certain animals.
noun (pl) -ta (-tə)
a layer of nutritive cells in the sporangia of ferns and anthers of flowering plants that surrounds developing spore cells
a membranous reflecting layer of cells in the choroid of the eye of nocturnal vertebrates
a similar structure in the eyes of certain nocturnal insects
(anatomy) a covering layer of cells behind the retina of the eye
tapetum ta·pe·tum (tə-pē’təm)
n. pl. ta·pe·ta (-tə)
A membranous layer or region, especially the iridescent membrane of the choroid of certain mammals.
A layer of fibers of the corpus callosum forming the roof of part of the lateral ventricle of the brain.
noun 1. any of various flat or tapelike worms of the class Cestoidea, lacking an alimentary canal, and parasitic when adult in the alimentary canal of humans and other vertebrates: the larval and adult stages are usually in different hosts. noun 1. any parasitic ribbon-like flatworm of the class Cestoda, having a body divided into […]
noun, Psychiatry. 1. an abnormal fear of being buried alive. noun 1. (med) a pathological fear of being buried alive
noun, (used with a plural verb) 1. (in ancient geography) a group of islands in the Ionian Sea.
noun, Metallurgy. 1. a hole in a blast furnace, steelmaking furnace, etc., through which molten metal or slag is tapped off. noun 1. a hole in a furnace for running off molten metal or slag