Now comes the tricky part, and look closely at this mosaic map.
The map of the future must be an aerial map, a mosaic map such as was used by our army headquarters.
Then he picked up a pencil and touched the tip of the sharpened point to the mosaic map.
c.1400, from Old French mosaicq "mosaic work," from Italian mosaico, from Medieval Latin musaicum "mosaic work, work of the Muses," noun use of neuter of musaicus "of the Muses," from Latin Musa (see muse). Medieval mosaics were often dedicated to the Muses. The word formed in Medieval Latin as though from Greek, but the (late) Greek word for "mosaic work" was mouseion (Klein says this sense was borrowed from Latin). Figurative use is from 1640s. As an adjective in English from 1580s. Related: Mosaicist.
mosaic mo·sa·ic (mō-zā'ĭk)
Patterned in small squares; tesselated. n.
An organism exhibiting mosaicism.