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morula

American  
[mawr-oo-luh, -yoo-] / ˈmɔr ʊ lə, -jʊ- /

noun

Embryology.
morulas, plural morulae plural
  1. the mass of cells resulting from the cleavage of the ovum before the formation of a blastula.


morula British  
/ ˈmɒrjʊlə /

noun

  1. embryol a solid ball of cells resulting from cleavage of a fertilized ovum

"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

morula Scientific  
/ môryə-lə /
morulae plural
  1. The spherical embryonic mass of blastomeres that results from cleavage of the fertilized ovum and develops into the blastula.


Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of morula

1855–60; < New Latin, equivalent to Latin mōr ( um ) mulberry + -ula -ule

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At this stage of development, called the morula, there are 30-60 cells.

From Textbooks Jun. 9, 2022

Sometimes, Ramos can wait for the embryo to become a morula, which looks like a blackberry, or a blastula, which looks like a soccer ball, before transferring the embryo to the woman's uterus.

From Slate May 23, 2012

From the community of amœba morula, now arose ciliated larvæ.

From Was Man Created? by Mott, Henry A. (Henry Augustus)

By repeated cleavage of it a morula is formed, and from this a blastula, which changes in a very characteristic way into the greatly modified gastrula.

From The Evolution of Man — Volume 1 by Haeckel, Ernst Heinrich Philipp August

To have some idea of those ancestors of our race that succeeded phylogenetically to the Moraeada, we have only to follow the further embryonic development of the morula.

From The Evolution of Man — Volume 2 by Haeckel, Ernst Heinrich Philipp August

Near the end of my visit, our conversation turned from the theoretical consideration of morulas and blastulas to the specific realities of my own condition and treatment.

From Slate May 23, 2012

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