invagination

Meanings

Plural: invaginations

Noun

• the condition of being folded inward or sheathed
• the folding in of an outer layer so as to form a pocket in the surface
  • "the invagination of the blastula"
• The process where an anatomical part invaginates upon itself or into another structure.
• One of the methods by which the various germinal layers of the ovum are differentiated.

Synonyms

infolding, introversion, intussusception