Cōs′/mo-rā′/mā or Cōs/mo-rā′/mā, n.

n. [Gr. κόσμος, the world, and ὅραμα, a sight, spectacle, from ὁρᾶν, to see.] An exhibition, through a lens or lenses, of a number of drawings or paintings of cities, buildings, landscapes, and the like, in different parts of the world, with suitable arrangements for illumination, so as to produce, in some degree, the effects of actual vision of the objects.