polyspermy

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polyspermy

 [pol″e-sper´me]
fertilization of an ovum by more than one spermatozoon; occurring normally in certain species (physiologic polyspermy) but only abnormally in species such as humans (pathologic polyspermy).

pol·y·sper·my

(pol'ē-sper'mē),
The entrance of more than one sperm into the oocyte.
Synonym(s): polyspermia (1) , polyspermism

polyspermy

/poly·sper·my/ (-sper´me) fertilization of an oocyte by more than one spermatozoon; occurring normally in certain species (physiologic p.) and sometimes abnormally in others (pathologic p.) .

polyspermy

(pŏl′ē-spûr′mē)
n.
The entry of several sperm into one ovum during fertilization.

pol′y·sper′mic adj.

pol·y·sper·my

(pol'ē-spĕr'mē)
The entrance of more than one sperm into the oocyte during fertilization.
Synonym(s): polyspermia (1) , polyspermism.

polyspermy

fertilization of an ovum by more than one spermatozoon; occurring normally in certain species (physiological polyspermy) and sometimes abnormally in others (pathological polyspermy).
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References in periodicals archive ?
The formation of male and female pronuclei and polyspermic oocytes was not significantly different in the presence or absence of glucose either.
This study was examined whether the variation of stress related HSP70 gene was associated with nuclear morphological change during in vitro maturation with or without freezing of immature oocytes on the pattern of the enlarged sperm head and polyspermic invasion in pigs.
In vitro fertilized oocytes were stained for 6 h as method confirming fertilized oocytes, and observed nuclear morphology of enlarged sperm head (ESH), both pronuclei (BPN; male pronuclei, female pronuclei) and polyspermic invasion were observed separately.
However, in the rate of polyspermic invasion, the CG and the GG genotype groups showed a slightly higher rate than the CC genotype group.
At 12 h after IVF, oocytes were fixed in 2% formaldehyde for 40 min to examine sperm penetration, polyspermic oocytes and pronucleus formations.
However, the percentage of polyspermic oocytes with two or more sperm head after in vitro fertilization for 6 h in the sperm concentration of 2.
of sperm sperm/ml) polyspermic oocytes (1) penetrated in oocyte (1) 2.