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meroblastic

[ mer-uh-blas-tik ]

adjective

, Embryology.
  1. (of certain eggs) undergoing partial cleavage, resulting in unequal blastomeres.


meroblastic

/ ˌmɛrəʊˈblæstɪk /

adjective

  1. embryol of or showing cleavage of only the non-yolky part of the zygote, as in birds' eggs Compare holoblastic
“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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Derived Forms

  • ˌmeroˈblastically, adverb
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Other Words From

  • mero·blasti·cal·ly adverb
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Word History and Origins

Origin of meroblastic1

First recorded in 1865–70; mero- + -blast + -ic
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Compare Meanings

How does meroblastic compare to similar and commonly confused words? Explore the most common comparisons:

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Example Sentences

Parablast, par′a-blast, n. the supplementary or nutritive yolk of a meroblastic egg or metovum—as distinguished from the archiblast, or formative yolk.—adj.

Meroblast, mer′ō-blast, n. a meroblastic ovum.—adj.

Latebra, lat′eb-ra, n. the cavity in the food-yolk of a meroblastic ovum.—adj.

Such a type of segmentation in which only part of the ovum segments is called meroblastic.

So far, the essential differences between the development of fowl and frog, the meroblastic segmentation, absence of a typical gastrula, and the primitive streak, seem comprehensible on the theory that such differences are due to the presence of an enormous amount of yolk.

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mero-merocrine