from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of the blastomeres from which the ectoderm develops.
from The Century Dictionary.
- noun In embryology, the less granular of the two blastomeres into which the mammalian ovum divides: also applied to a descendant of this blastomere in the first stages of development. See blastomere, entomere.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Biol.) The more transparent cells, which finally become external, in many segmenting ova, as those of mammals.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Any of the
blastomeresfrom which the ectodermforms
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