invaginate

Verb

• sheathe
  • "The chrysalis is invaginated"
• fold inwards
  • "some organs can invaginate"
• To fold up or enclose into a sheath-like or pouch-like structure, either naturally or as part of a surgical procedure.
• To turn or fold inwardly.
• To fold inward to create a hollow space where none had existed, as with a gastrula forming from a blastula.

Adj

• sheathed
• Having one portion of a hollow organ drawn back within another portion.

Synonyms

introvert