Blastula meaning

blăs'chə-lə
An early embryonic form produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity.
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An early embryonic form produced by cleavage of a fertilized ovum and consisting of a spherical layer of cells surrounding a fluid-filled cavity.
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An embryo at the stage of development in which it consists of usually one layer of cells around a central cavity, forming a hollow sphere.
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An animal embryo at the stage immediately following the division of the fertilized egg cell, consisting of a ball-shaped layer of cells around a fluid-filled cavity known as a blastocoel.
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(embryology) An early form in the development of an embryo, consisting of a spherical layer of cells filled with fluid; a blastosphere.
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Origin of blastula

  • New Latin from Greek blastos bud Latin -ula feminine diminutive suff.
    From American Heritage Dictionary of the English Language, 5th Edition
  • From New Latin, diminutive of Ancient Greek βλαστός (blastos, “a germ, bud, sprout, shoot”), from βλαστάνειν (blastanein, “to bud, sprout, grow, properly of plants, but also of animals”).
    From Wiktionary