|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|1.||pathol the process of invaginating or the condition of being invaginated; intussusception|
|2.||pathol an invaginated organ or part|
|3.||an infolding of the outer layer of cells of an organism or part of an organism so as to form a pocket in the surface, as in the embryonic development of a gastrula from a blastula|
invagination in·vag·i·na·tion (ĭn-vāj'ə-nā'shən)
The act or process of invaginating or the condition of being invaginated.
An invaginated organ or part.
The infolding of a portion of the outer layer of a blastula in the formation of a gastrula.