Dictionary.net

• Applied to a part which is received into another, as into a sheath. The invaginated or slit and tail bandage is one in which strips or tails pass through appropriate slits or button-holes.

1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison

• Thrust inward in the manner of a pouch.

1898 - American pocket medical dictionary
By Willam Alexander Newman Dorland