verb, -nat⋅ed, -nat⋅ing, adjective | 1. | to insert or receive, as into a sheath; sheathe. |
| 2. | to fold or draw (a tubular organ) back within itself; intussuscept. |
| 3. | to become invaginated; undergo invagination. |
| 4. | to form a pocket by turning in. |
invaginate in·vag·i·nate (ĭn-vāj'ə-nāt')
v. in·vag·i·nat·ed, in·vag·i·nat·ing, in·vag·i·nates
To infold or become infolded so as to form a hollow space within a previously solid structure, as in the formation of a gastrula from a blastula.