To collapse inward or downward.
To relent; to grant approval against one's initial will.
The act of relenting.
The location where something has caved in.
The act of something collapsing or caving in.
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.
To fold up or enclose into a sheath-like or pouch-like structure, either naturally or as part of a surgical procedure.
Having one portion of a hollow organ drawn back within another portion.
sheathed