Definition of gymnosperm in English:

gymnosperm

noun ˈdʒɪmnə(ʊ)spəːmˈdʒɪmnəˌspərm

Botany

A plant of a group that comprises those that have seeds unprotected by an ovary or fruit, including the conifers, cycads, and ginkgo.
Subdivision Gymnospermae, division Spermatophyta
Compare with angiosperm
Example sentencesExamples
- Among the plant branches, there were several supported groupings representing only gymnosperms or conifers.
- Taxonomists can now say that the ferns' closest cousins are the seed plants - angiosperms (flowering plants) and gymnosperms (such as conifers).
- Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved.
- Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes.
- The known flora consists of 41 ferns and fern allies, 3 gymnosperms, 291 monocots, and 516 dicots.

Derivatives

gymnospermous

adjective dʒɪmnə(ʊ)ˈspəːməsˌdʒɪmnəˈspərməs

Botany

In contrast, the interval between c.916m and 885.9Om is totally dominated by gymnospermous saccate pollen, with very few fern spores.
Example sentencesExamples
- Of the 21 taxa recorded in the census 14 showed evidence of insect damage (13 out of 15 gymnospermous taxa).
- So this is a time period where gymnospermous plants predominated, including cycadioids which look like modern cycads, and various groups of extinct conifers and seed ferns.
- Although anatomically preserved tissue is not seen in rhizoconcretions from the Hebert beds, their similar size suggests they also may be gymnospermous, probably belonging to cordaites or pteridosperms.
- The late Triassic showed major radiation of plants, gymnospermous groups in particular, in both the Northern and Southern Hemispheres.

Definition of gymnosperm in US English:

gymnosperm

nounˈjimnəˌspərmˈdʒɪmnəˌspərm

Botany

A plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo.
Subdivision Gymnospermae, division Spermatophyta
Compare with angiosperm
Example sentencesExamples
- Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved.
- The known flora consists of 41 ferns and fern allies, 3 gymnosperms, 291 monocots, and 516 dicots.
- Among the plant branches, there were several supported groupings representing only gymnosperms or conifers.
- Taxonomists can now say that the ferns' closest cousins are the seed plants - angiosperms (flowering plants) and gymnosperms (such as conifers).
- Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes.

单词	gymnosperm
释义	Definition of gymnosperm in English: gymnosperm noun ˈdʒɪmnə(ʊ)spəːmˈdʒɪmnəˌspərm Botany A plant of a group that comprises those that have seeds unprotected by an ovary or fruit, including the conifers, cycads, and ginkgo. Subdivision Gymnospermae, division Spermatophyta Compare with angiosperm Example sentencesExamples Among the plant branches, there were several supported groupings representing only gymnosperms or conifers. Taxonomists can now say that the ferns' closest cousins are the seed plants - angiosperms (flowering plants) and gymnosperms (such as conifers). Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved. Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes. The known flora consists of 41 ferns and fern allies, 3 gymnosperms, 291 monocots, and 516 dicots. Derivatives gymnospermous adjective dʒɪmnə(ʊ)ˈspəːməsˌdʒɪmnəˈspərməs Botany In contrast, the interval between c.916m and 885.9Om is totally dominated by gymnospermous saccate pollen, with very few fern spores. Example sentencesExamples Of the 21 taxa recorded in the census 14 showed evidence of insect damage (13 out of 15 gymnospermous taxa). So this is a time period where gymnospermous plants predominated, including cycadioids which look like modern cycads, and various groups of extinct conifers and seed ferns. Although anatomically preserved tissue is not seen in rhizoconcretions from the Hebert beds, their similar size suggests they also may be gymnospermous, probably belonging to cordaites or pteridosperms. The late Triassic showed major radiation of plants, gymnospermous groups in particular, in both the Northern and Southern Hemispheres. Definition of gymnosperm in US English: gymnosperm nounˈjimnəˌspərmˈdʒɪmnəˌspərm Botany A plant that has seeds unprotected by an ovary or fruit. Gymnosperms include the conifers, cycads, and ginkgo. Subdivision Gymnospermae, division Spermatophyta Compare with angiosperm Example sentencesExamples Moreover, since the expression pattern is similar in a gymnosperm and in an angiosperm this function appears to be evolutionarily conserved. The known flora consists of 41 ferns and fern allies, 3 gymnosperms, 291 monocots, and 516 dicots. Among the plant branches, there were several supported groupings representing only gymnosperms or conifers. Taxonomists can now say that the ferns' closest cousins are the seed plants - angiosperms (flowering plants) and gymnosperms (such as conifers). Simple trichomes are present on aerial surfaces of most angiosperms and on some gymnosperms and bryophytes.
随便看	unwatchful unwatchfully unwatered unwavering unwaveringly unwaveringly unwaxed unweaned unwearable unwearied unweariedly unweariedly unweariedness unweariedness unweariness unweary unwearying unwearyingly unwearyingly unwed unwedded unweddedness unweddedness unweeded unweighed