- the mass of cells resulting from the cleavage of the ovum before the formation of a blastula.
Origin of morula
1855–60; < New Latin, equivalent to Latin mōr(um) mulberry + -ula -ule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for morula
A vertebrate ovum in this stage of complete segmentation is called the morula from its resemblance to a mulberry (Fig. 4).The Anatomy of the Human Peritoneum and Abdominal Cavity
George. S. Huntington
Morula, mor′ū-la, n. condition of an ovum after complete segmentation: button-scurvy.
This stage is called the morula (“mulberry,” which it somewhat resembles in shape).
This morula, as I have called it, reproduces the next stage in the development of life.
As a consequence of this superficial concentration we get segmentation of the vitellus, with the production of a morula.The Mechanism of Life
- embryol a solid ball of cells resulting from cleavage of a fertilized ovum
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
- The spherical embryonic mass of blastomeres formed before the blastula and resulting from cleavage of the fertilized ovum.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.