tapetum

[ tuh-pee-tuhm ]

/ təˈpi təm /

noun, plural ta·pe·ta [tuh-pee-tuh]. /təˈpi tə/.

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.

Origin of tapetum

1705–15; <New Latin, special use of Medieval Latin tapētum coverlet (Latin, only plural) <Greek tapēt- (stem of tápēs) carpet, rug

OTHER WORDS FROM tapetum

ta·pe·tal, adjective

Words nearby tapetum

tapestry, tapestry moth, tapetoretinal, tapetoretinal retinopathy, tape transport, tapetum, tapeworm, taphephobia, Taphiae, taphole, taphonomy

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for tapetum

The tapetum lucidum is found in Ungulata, Cetacea and Carnivora.
Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1|Various
The subject, however, of the various colours of the tapetum in different animals is not yet understood.
The Book of Cats|Charles H. Ross
Iris tapetum: the pigment layer of the compound eye just below the crystalline cone.
Explanation of Terms Used in Entomology|John. B. Smith

British Dictionary definitions for tapetum

tapetum

/ (təˈpiːtəm) /

noun plural -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

Derived forms of tapetum

tapetal, adjective

Word Origin for tapetum

C18: from New Latin, from Medieval Latin: covering, from Latin tapēte carpet, from Greek tapēs carpet

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for tapetum

tapetum

[ 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.

单词	tapetum
释义	tapetum [ tuh-pee-tuhm ] / təˈpi təm / noun, plural ta·pe·ta [tuh-pee-tuh]. /təˈpi tə/. 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. Origin of tapetum 1705–15; <New Latin, special use of Medieval Latin tapētum coverlet (Latin, only plural) <Greek tapēt- (stem of tápēs) carpet, rug OTHER WORDS FROM tapetum ta·pe·tal, adjective Words nearby tapetum tapestry, tapestry moth, tapetoretinal, tapetoretinal retinopathy, tape transport, tapetum, tapeworm, taphephobia, Taphiae, taphole, taphonomy Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for tapetum The tapetum lucidum is found in Ungulata, Cetacea and Carnivora. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 1\|Various The subject, however, of the various colours of the tapetum in different animals is not yet understood. The Book of Cats\|Charles H. Ross Iris tapetum: the pigment layer of the compound eye just below the crystalline cone. Explanation of Terms Used in Entomology\|John. B. Smith British Dictionary definitions for tapetum tapetum / (təˈpiːtəm) / noun plural -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 Derived forms of tapetum tapetal, adjective Word Origin for tapetum C18: from New Latin, from Medieval Latin: covering, from Latin tapēte carpet, from Greek tapēs carpet Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for tapetum tapetum [ 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. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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