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[mawr-oo-luh, -yoo-] /ˈmɔr ʊ lə, -yʊ-/
noun, plural morulas, morulae
[mawr-oo-lee, -yoo-] /ˈmɔr ʊˌli, -yʊ-/ (Show IPA).
the mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
1855-60; < New Latin, equivalent to Latin mōr(um) mulberry + -ula -ule
Related forms
morular, adjective
premorular, adjective
pseudomorular, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for morula
  • For diagnosis, morula may be found in monocytes and lymphocytes in lymph node aspirates.
  • Here, it is called the morula, the source of totipotent stem cells.
British Dictionary definitions for morula


noun (pl) -las, -lae (-ˌliː)
(embryol) a solid ball of cells resulting from cleavage of a fertilized ovum
Derived Forms
morular, adjective
Word Origin
C19: via New Latin, diminutive of Latin morum mulberry, from Greek moron
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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morula in Medicine

morula mor·u·la (môr'yə-lə, môr'ə-)
n. pl. mor·u·lae (-lē')
The spherical embryonic mass of blastomeres formed before the blastula and resulting from cleavage of the fertilized ovum.

mor'u·lar adj.
mor'u·la'tion (-lā'shən) n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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morula in Science
Plural morulae (môr'yə-lē')
The spherical embryonic mass of blastomeres that results from cleavage of the fertilized ovum and develops into the blastula.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for morula

solid mass of blastomeres resulting from a number of cleavages of a zygote, or fertilized egg. Its name derives from its resemblance to a mulberry (Latin: morum). A morula is usually produced in those species the eggs of which contain little yolk and, consequently, undergo complete cleavage. Those blastomeres on the surface of the morula give rise to extra-embryonic parts of the embryo. The cells of the interior, the inner cell mass, develop into the embryo proper

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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