Definition of invagination in English:

invagination

noun ɪnˌvadʒɪˈneɪʃ(ə)nɪnˌvædʒəˈneɪʃən

mass nounAnatomy Biology

1The action or process of being turned inside out or folded back on itself to form a cavity or pouch.
〔主剖，生〕内陷
Example sentencesExamples
- The initial conditions for the appearance of feathers also probably resides in processes common to all ammonites and include placode formation, invagination, and mesenchymal-epithelial interactions.
- In the chick embryo, for example, the ectoderm initially expresses L-CAM; during neural plate invagination, however, L-CAM expression is replaced by that of N-cadherin.
- This indicates a level of plasma membrane invagination comparable with mammalian skeletal muscle.
- Catheters with multiple side holes on several planes are less likely to cause invagination of airway mucosa into the catheter than those with single side or end holes.
- Specifically, the ventral invagination and migration of mesodermal precursors in the embryo are severely impaired, as are head involution, dorsal closure, and the migration of gonadal precursors.
1. 1.1count noun A cavity or pouch so formed.
  （内陷形成的）囊腔
  Example sentencesExamples
  There is a refracting secretion in the space of this invagination presumably protecting the photoreceptor cells.
  As is typical, many of the latter showed reactive changes, such as large, variably sized nuclei; intranuclear invaginations; and multinucleation.
  These invaginations represent placental outgrowths and they extend towards the centre, enclosing the central hole into a triangular slit.
  Intranuclear cytoplasmic invaginations, similar to that seen in non-neoplastic hepatocytes (or in metastatic melanoma) are also frequent.
  The internodes have invaginations that are termed cupules.

Origin

Mid 17th century: from modern Latin invaginatio(n-), based on in-² 'into' + Latin vagina 'sheath'.

Definition of invagination in US English:

invagination

nouninˌvajəˈnāSHənɪnˌvædʒəˈneɪʃən

Anatomy Biology

1The action or process of being turned inside out or folded back on itself to form a cavity or pouch.
〔主剖，生〕内陷
Example sentencesExamples
- In the chick embryo, for example, the ectoderm initially expresses L-CAM; during neural plate invagination, however, L-CAM expression is replaced by that of N-cadherin.
- Specifically, the ventral invagination and migration of mesodermal precursors in the embryo are severely impaired, as are head involution, dorsal closure, and the migration of gonadal precursors.
- The initial conditions for the appearance of feathers also probably resides in processes common to all ammonites and include placode formation, invagination, and mesenchymal-epithelial interactions.
- Catheters with multiple side holes on several planes are less likely to cause invagination of airway mucosa into the catheter than those with single side or end holes.
- This indicates a level of plasma membrane invagination comparable with mammalian skeletal muscle.
1. 1.1 A cavity or pouch so formed.
  （内陷形成的）囊腔
  Example sentencesExamples
  These invaginations represent placental outgrowths and they extend towards the centre, enclosing the central hole into a triangular slit.
  There is a refracting secretion in the space of this invagination presumably protecting the photoreceptor cells.
  Intranuclear cytoplasmic invaginations, similar to that seen in non-neoplastic hepatocytes (or in metastatic melanoma) are also frequent.
  As is typical, many of the latter showed reactive changes, such as large, variably sized nuclei; intranuclear invaginations; and multinucleation.
  The internodes have invaginations that are termed cupules.

Origin

Mid 17th century: from modern Latin invaginatio(n-), based on in- ‘into’ + Latin vagina ‘sheath’.

单词	invagination
释义	Definition of invagination in English: invagination noun ɪnˌvadʒɪˈneɪʃ(ə)nɪnˌvædʒəˈneɪʃən mass nounAnatomy Biology 1The action or process of being turned inside out or folded back on itself to form a cavity or pouch. 〔主剖，生〕内陷 Example sentencesExamples The initial conditions for the appearance of feathers also probably resides in processes common to all ammonites and include placode formation, invagination, and mesenchymal-epithelial interactions. In the chick embryo, for example, the ectoderm initially expresses L-CAM; during neural plate invagination, however, L-CAM expression is replaced by that of N-cadherin. This indicates a level of plasma membrane invagination comparable with mammalian skeletal muscle. Catheters with multiple side holes on several planes are less likely to cause invagination of airway mucosa into the catheter than those with single side or end holes. Specifically, the ventral invagination and migration of mesodermal precursors in the embryo are severely impaired, as are head involution, dorsal closure, and the migration of gonadal precursors. 1.1count noun A cavity or pouch so formed. （内陷形成的）囊腔 Example sentencesExamples There is a refracting secretion in the space of this invagination presumably protecting the photoreceptor cells. As is typical, many of the latter showed reactive changes, such as large, variably sized nuclei; intranuclear invaginations; and multinucleation. These invaginations represent placental outgrowths and they extend towards the centre, enclosing the central hole into a triangular slit. Intranuclear cytoplasmic invaginations, similar to that seen in non-neoplastic hepatocytes (or in metastatic melanoma) are also frequent. The internodes have invaginations that are termed cupules. Origin Mid 17th century: from modern Latin invaginatio(n-), based on in-² 'into' + Latin vagina 'sheath'. Definition of invagination in US English: invagination nouninˌvajəˈnāSHənɪnˌvædʒəˈneɪʃən Anatomy Biology 1The action or process of being turned inside out or folded back on itself to form a cavity or pouch. 〔主剖，生〕内陷 Example sentencesExamples In the chick embryo, for example, the ectoderm initially expresses L-CAM; during neural plate invagination, however, L-CAM expression is replaced by that of N-cadherin. Specifically, the ventral invagination and migration of mesodermal precursors in the embryo are severely impaired, as are head involution, dorsal closure, and the migration of gonadal precursors. The initial conditions for the appearance of feathers also probably resides in processes common to all ammonites and include placode formation, invagination, and mesenchymal-epithelial interactions. Catheters with multiple side holes on several planes are less likely to cause invagination of airway mucosa into the catheter than those with single side or end holes. This indicates a level of plasma membrane invagination comparable with mammalian skeletal muscle. 1.1 A cavity or pouch so formed. （内陷形成的）囊腔 Example sentencesExamples These invaginations represent placental outgrowths and they extend towards the centre, enclosing the central hole into a triangular slit. There is a refracting secretion in the space of this invagination presumably protecting the photoreceptor cells. Intranuclear cytoplasmic invaginations, similar to that seen in non-neoplastic hepatocytes (or in metastatic melanoma) are also frequent. As is typical, many of the latter showed reactive changes, such as large, variably sized nuclei; intranuclear invaginations; and multinucleation. The internodes have invaginations that are termed cupules. Origin Mid 17th century: from modern Latin invaginatio(n-), based on in- ‘into’ + Latin vagina ‘sheath’.
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