| 释义 |
Definition of tapetum in English: tapetumnoun təˈpiːtəmtəˈpēdəm Zoology A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark. 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: tapetumnountəˈpēdəm Zoology A reflective layer of the choroid in the eyes of many animals, causing them to shine in the dark. 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’. |