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[moh-zey-ik] /moʊˈzeɪ ɪk/
of or relating to Moses or the writings, laws, and principles attributed to him:
Mosaic ethics.
Sometimes, Mosaical.
Origin of Mosaic
1655-65; < New Latin Mosaicus, equivalent to Late Latin Mōs(ēs) Moses + -aicus, on the model of Hebraicus Hebraic
Related forms
post-Mosaic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for mosaical


of or relating to Moses or the laws and traditions ascribed to him


a design or decoration made up of small pieces of coloured glass, stone, etc
the process of making a mosaic
  1. a mottled yellowing that occurs in the leaves of plants affected with any of various virus diseases
  2. Also called mosaic disease. any of the diseases, such as tobacco mosaic, that produce this discoloration
(genetics) another name for chimera (sense 4)
an assembly of aerial photographs forming a composite picture of a large area on the ground
a light-sensitive surface on a television camera tube, consisting of a large number of granules of photoemissive material deposited on an insulating medium
Derived Forms
mosaicist (məˈzeɪɪsɪst) noun
Word Origin
C16: via French and Italian from Medieval Latin mōsaicus, from Late Greek mouseion mosaic work, from Greek mouseios of the Muses, from mousaMuse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for mosaical



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.



"pertaining to Moses," 1660s (earlier Mosaical, 1560s), from Modern Latin Mosaicus, from Moses.

Online Etymology Dictionary, © 2010 Douglas Harper
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mosaical in Medicine

mosaic mo·sa·ic (mō-zā'ĭk)
Patterned in small squares; tesselated. n.
An organism exhibiting mosaicism.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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mosaical in Science
Any of various viral diseases of plants, resulting in light and dark areas in the leaves, which often become shriveled and dwarfed.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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mosaical in Culture

mosaic definition

A picture or design made from small pieces of colored tile, glass, or other material set in mortar. Mosaics have been widely used in Christian churches to decorate walls and ceilings.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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