Definitions
from The Century Dictionary.
- noun In embryology, a name given by Haeckel to a supposed non-nucleated stage of an impregnated ovum, when it has the form-value of a simple cytode, or moner.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Biol.) A germ in that stage of development in which its form is simply that of a non-nucleated mass of protoplasm. It precedes the one-celled germ. So called from its likeness to a moner.
Etymologies
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Examples
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The monerula was the fertilised ovum after the disappearance of the germinal vesicle; [438] it was the equivalent of the primordial anucleate Monera which are the ancestors of all animals.
Form and Function A Contribution to the History of Animal Morphology
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