Definition of tapetum in English:

tapetum

noun təˈpiːtəmtəˈpēdəm

Zoology

A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark.
〔动〕眼毯，反光色素层，反光组织
Example sentencesExamples
- These animals typically contain abundant populations of rods in their retinas, which are often found in conjunction with a retinal tapetum.
- Only animals active at night have these tapetums, which underlie their light-retrieving retinas.
- Passing over the ship's holds I look down upon sedate shoals of crescent-tailed bigeyes, their reflective tapetums looking like silver cataracts.
- This ‘eyeshine’ is not the iris color but that of the vascular membrane - the tapetum - showing through the translucent pigment layer on the surface of the retina.
- A layer of tapetum at the back of their eyes greatly increases their ability to see at night as well; this also makes their eyes glow in the dark.

Origin

Early 18th century: from late Latin, from Latin tapete 'carpet'.

Definition of tapetum in US English:

tapetum

nountəˈpēdəm

Zoology

A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark.
〔动〕眼毯，反光色素层，反光组织
Example sentencesExamples
- This ‘eyeshine’ is not the iris color but that of the vascular membrane - the tapetum - showing through the translucent pigment layer on the surface of the retina.
- These animals typically contain abundant populations of rods in their retinas, which are often found in conjunction with a retinal tapetum.
- Passing over the ship's holds I look down upon sedate shoals of crescent-tailed bigeyes, their reflective tapetums looking like silver cataracts.
- Only animals active at night have these tapetums, which underlie their light-retrieving retinas.
- A layer of tapetum at the back of their eyes greatly increases their ability to see at night as well; this also makes their eyes glow in the dark.

Origin

Early 18th century: from late Latin, from Latin tapete ‘carpet’.

词汇	tapetum
释义	Definition of tapetum in English: tapetum noun təˈpiːtəmtəˈpēdəm Zoology A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark. 〔动〕眼毯，反光色素层，反光组织 Example sentencesExamples These animals typically contain abundant populations of rods in their retinas, which are often found in conjunction with a retinal tapetum. Only animals active at night have these tapetums, which underlie their light-retrieving retinas. Passing over the ship's holds I look down upon sedate shoals of crescent-tailed bigeyes, their reflective tapetums looking like silver cataracts. This ‘eyeshine’ is not the iris color but that of the vascular membrane - the tapetum - showing through the translucent pigment layer on the surface of the retina. A layer of tapetum at the back of their eyes greatly increases their ability to see at night as well; this also makes their eyes glow in the dark. Origin Early 18th century: from late Latin, from Latin tapete 'carpet'. Definition of tapetum in US English: tapetum nountəˈpēdəm Zoology A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark. 〔动〕眼毯，反光色素层，反光组织 Example sentencesExamples This ‘eyeshine’ is not the iris color but that of the vascular membrane - the tapetum - showing through the translucent pigment layer on the surface of the retina. These animals typically contain abundant populations of rods in their retinas, which are often found in conjunction with a retinal tapetum. Passing over the ship's holds I look down upon sedate shoals of crescent-tailed bigeyes, their reflective tapetums looking like silver cataracts. Only animals active at night have these tapetums, which underlie their light-retrieving retinas. A layer of tapetum at the back of their eyes greatly increases their ability to see at night as well; this also makes their eyes glow in the dark. Origin Early 18th century: from late Latin, from Latin tapete ‘carpet’.
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