plural of invagination

(mathematics) Pertaining to a generalization of a cosimplicial space to diagrams of spaces that are cosimplicial in each direction.

Delia antiqua, a cosmopolitan pest of crops, whose larvae or maggots feed on onions, garlic and other bulbous plants.

(narratology) The technique, typically used in horror films and video games, of having something occur suddenly and without warning to frighten the audience.