micromere

One of the small blastomeres found in a developing embryo.

The smaller one of two masses or moieties into which the vitellus of a lamelli branch, as a fresh-water mussel, divides; the so-called “animal cell” of Rabl, which further subdivides into blastomeres. See macromere.

One of the small blastomeres, or cells, which result from the early cleavage of the egg: opposed to macromere or megamere.

One of the smaller cells, or blastomeres, resulting from the complete segmentation of a telolecithal ovum.

An unusually small blastomere formed by unequal cleavage of a fertilized ovum