nounchiefly Anatomy & Biology
- 1The action or process of being turned inside out or folded back on itself to form a cavity or pouch.More example sentences
- This indicates a level of plasma membrane invagination comparable with mammalian skeletal muscle.
- 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.
- 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.
- 1.1A cavity or pouch so formed.More example sentences
- Intranuclear cytoplasmic invaginations, similar to that seen in non-neoplastic hepatocytes (or in metastatic melanoma) are also frequent.
- These invaginations represent placental outgrowths and they extend towards the centre, enclosing the central hole into a triangular slit.
- As is typical, many of the latter showed reactive changes, such as large, variably sized nuclei; intranuclear invaginations; and multinucleation.
mid 17th century: from modern Latin invaginatio(n-), based on in-2 'into' + Latin vagina 'sheath'.
More definitions of invaginationDefinition of invagination in:
- The British & World English dictionary