| 单词 | dicotyledon |
| 释义 | dicotyledon noun[C] biologyspecializeduk/ˌdaɪ.kɒt.ɪˈliː.dən/us/ˌdaɪ.kɑː.t̬əlˈiː.dən/aplantthat has twocotyledons(=leafpartsinside theseed) Compare monocotyledon Types of plant
dicotyledon noun[C] biologyspecializeduk/ˌdaɪ.kɒt.ɪˈliː.dən/us/ˌdaɪ.kɑː.t̬əlˈiː.dən/aplantthatproducesflowersand has twocotyledons(=leafpartsinside theseed) 双子叶植物（种子有两片子叶的植物） Examplesofdicotyledondicotyledon 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. From theCambridge English Corpus During the spring period no one host appeared to be preferred, with both mono- and dicotyledons supporting populations. From theCambridge English Corpus To examine whether larval migration was as efficient on heather as on a monocotyledon or on a structurally simpledicotyledonwe undertook a second experiment. From theCambridge English Corpus 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. From theCambridge English Corpus 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. From theCambridge English Corpus 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. From theCambridge English Corpus It is easy to germinate, having two-lobed dicotyledons. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.It is secreted at wounded site of dicotyledons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Xyloglucan is the predominant hemicellulose in the cell walls of most dicotyledons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The dicotyledons, also known as dicots, are a group of flowering plants whose seed typically has two embryonic leaves or cotyledons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.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 This example is from Wikipedia and may be reused under a CC BY-SA license.Grants gazelles eat mainly dicotyledons during the dry season and grass in the wet season. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The caterpillars usually develop in leaves spun together with silk, as stem borers or as seed or flower feeders of dicotyledons. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Most angiosperm trees are eudicots, the true dicotyledons, so named because the seeds contain two cotyledons or seed leaves. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.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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