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词汇 dicotyledon
释义 dicotyledon
noun[ C ]
 biology specializeduk /ˌdaɪ.kɒt.ɪˈliː.dən/ us /ˌdaɪ.kɑː.t̬əlˈiː.dən/
a plant that has two cotyledons (= leaf parts inside the seed)双子叶植物(种子有两片子叶的植物)
Compare
monocotyledon
SMART Vocabulary: related words and phrases

Types of plant
acanthus
air plant
amaranth
Andromeda
angiosperm
emergent
evergreen
fiddlehead
grower
gymnosperm
mossy
mugwort
mustard
non-hardy
non-legume
spleenwort
starter plug
succulent
sundew
tenderness

Related word


dicotyledonous
Examples from literature

As many of the dicotyledons are trees or shrubs that lose their leaves annually, special leaves are developed for the protection of the young leaves during the winter. 
Dicotyledons have bark, wood, and pith, and grow by producing a new ring of wood outside the old. 
I will describe as examples the reproduction of a moss, a fern, and a dicotyledon. 
Nearly all of the dicotyledons may be placed in one of two great divisions distinguished by the character of the petals. 

Examples of dicotyledon


dicotyledon
Transects from the crabless zone contained twice the density and diversity of dicotyledons, and three times the seedling density, than transects from the crab zone.
During the spring period no one host appeared to be preferred, with both mono- and dicotyledons supporting populations.
To examine whether larval migration was as efficient on heather as on a monocotyledon or on a structurally simple dicotyledon we undertook a second experiment.
The diversity of dicotyledons was also relatively low when compared to the crabless zone with only 46 species identified representing 38 genera and 25 families.
A certain parallelism can be traced in the changes of seed properties in plants of higher taxa, such as angiosperms and gymnosperms, or monocotyledons and dicotyledons.
While the number o f species diminished following crop residue application, i t increased strongly following the application of fertilizer that enhanced the seed bank of dicotyledons and largeseeded annuals.
It is easy to germinate, having two-lobed dicotyledons.
From
Wikipedia

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It is secreted at wounded site of dicotyledons.
From
Wikipedia

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Xyloglucan is the predominant hemicellulose in the cell walls of most dicotyledons.
From
Wikipedia

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The dicotyledons, also known as dicots, are a group of flowering plants whose seed typically has two embryonic leaves or cotyledons.
From
Wikipedia

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The term means true dicotyledons, as it contains the majority of plants that have been considered dicots and have characteristics of the dicots.
From
Wikipedia

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Grants gazelles eat mainly dicotyledons during the dry season and grass in the wet season.
From
Wikipedia

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The caterpillars usually develop in leaves spun together with silk, as stem borers or as seed or flower feeders of dicotyledons.
From
Wikipedia

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Most angiosperm trees are eudicots, the true dicotyledons, so named because the seeds contain two cotyledons or seed leaves.
From
Wikipedia

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Dicotyledons are not a monophyletic group, and therefore the names dicotyledons and dicots are paraphyletic terms.
From
Wikipedia

This example is from Wikipedia and may be reused under a CC BY-SA license.
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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