Definition of periderm in English:

periderm

noun ˈpɛrɪdəːmˈperəˌdərm

mass nounBotany

The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection.
〔植〕（茎次生加厚或对受损或感染响应形成的）周皮
Example sentencesExamples
- They are well known to occur in plant/atmosphere interfaces where they form water-tight barriers such as the leaf cuticle and suberized periderm.
- The stage IV stem illustrated here shows an outer covering of periderm with fine strips of fibres formed from the secondary phloem.
- They were observed 6-7 layers below the suberized periderm and in the tuber portion far from the buds.
- Seed plants produce wood and periderm through secondary growth.
- Potato tuber native periderm and immature wound periderm were very similar in basic organization.

Derivatives

peridermal

adjective pɛrɪˈdəːm(ə)l

Botany

We will not address any air spaces derived from phellogen (cork cambium) as peridermal or secondary aerenchyma although it is very important for some plants, especially woody plants with secondary growth of roots.
Example sentencesExamples
- The simple ectodermal epithelium of the anterior metatarsal region produces the suprabasal peridermal layer around 6 days of development.
- This is supported by the formation of soil/root air gaps as roots shrink in drying soil reducing root to soil contact, by formation of cortical lacunae in the roots and by peridermal dehydration.

Origin

Mid 19th century: from peri- 'around' + Greek derma 'skin'.

Definition of periderm in US English:

periderm

nounˈperəˌdərm

Botany

The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection.
〔植〕（茎次生加厚或对受损或感染响应形成的）周皮
Example sentencesExamples
- The stage IV stem illustrated here shows an outer covering of periderm with fine strips of fibres formed from the secondary phloem.
- Potato tuber native periderm and immature wound periderm were very similar in basic organization.
- They were observed 6-7 layers below the suberized periderm and in the tuber portion far from the buds.
- Seed plants produce wood and periderm through secondary growth.
- They are well known to occur in plant/atmosphere interfaces where they form water-tight barriers such as the leaf cuticle and suberized periderm.

Origin

Mid 19th century: from peri- ‘around’ + Greek derma ‘skin’.

单词	periderm
释义	Definition of periderm in English: periderm noun ˈpɛrɪdəːmˈperəˌdərm mass nounBotany The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection. 〔植〕（茎次生加厚或对受损或感染响应形成的）周皮 Example sentencesExamples They are well known to occur in plant/atmosphere interfaces where they form water-tight barriers such as the leaf cuticle and suberized periderm. The stage IV stem illustrated here shows an outer covering of periderm with fine strips of fibres formed from the secondary phloem. They were observed 6-7 layers below the suberized periderm and in the tuber portion far from the buds. Seed plants produce wood and periderm through secondary growth. Potato tuber native periderm and immature wound periderm were very similar in basic organization. Derivatives peridermal adjective pɛrɪˈdəːm(ə)l Botany We will not address any air spaces derived from phellogen (cork cambium) as peridermal or secondary aerenchyma although it is very important for some plants, especially woody plants with secondary growth of roots. Example sentencesExamples The simple ectodermal epithelium of the anterior metatarsal region produces the suprabasal peridermal layer around 6 days of development. This is supported by the formation of soil/root air gaps as roots shrink in drying soil reducing root to soil contact, by formation of cortical lacunae in the roots and by peridermal dehydration. Origin Mid 19th century: from peri- 'around' + Greek derma 'skin'. Definition of periderm in US English: periderm nounˈperəˌdərm Botany The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection. 〔植〕（茎次生加厚或对受损或感染响应形成的）周皮 Example sentencesExamples The stage IV stem illustrated here shows an outer covering of periderm with fine strips of fibres formed from the secondary phloem. Potato tuber native periderm and immature wound periderm were very similar in basic organization. They were observed 6-7 layers below the suberized periderm and in the tuber portion far from the buds. Seed plants produce wood and periderm through secondary growth. They are well known to occur in plant/atmosphere interfaces where they form water-tight barriers such as the leaf cuticle and suberized periderm. Origin Mid 19th century: from peri- ‘around’ + Greek derma ‘skin’.
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