Definitions
from The Century Dictionary.
- noun A flagellate spermatozoön.
Etymologies
Sorry, no etymologies found.
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Examples
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The important conclusion is forced upon us by these experiments with a needle, that even in so typical and highly organised a creature as one of the higher or five-fingered, air-breathing vertebrates, the egg-cell does not require any material admixture from the sperm-cell in order that it may successfully germinate and develop, but only a disturbance of equilibrium, which can be administered as well by a needle's point as by a sperm-filament!
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The recent discovery of M. Bataillon is this, viz. that you can make the frog's egg develop in a perfectly regular way and become a tadpole and then a young frog without the admission to it of a sperm-filament or of any substance derived from the male frog.
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The slight artificial puncture acts as does the natural puncture by the swimming sperm-filament, and is sufficient!
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